Foundation multi-player mapSuccessfully complete single player mode on any difficulty setting to unlock the Foundation multi-player map. Note: There is a glitch that prevents some people from unlocking the map as it was originally intended. The way it has been done successfully is as follows: Successfully complete single player mode on any difficulty setting. Create a new profile. Begin a co-op game on the last level with the newly-created profile with the second player. When you reach a section where you fly a Banshee, the new profile must perform a barrel roll and a loop-the-loop.
Finish the campaign and the new profile can access the Foundation map when hosting split-screen, System Link, or Xbox Live games. Alternately, if you have Xbox Live, go to the Microsoft Content download menu. Then, download all recently updated content. Go to a game menu. Go to change the options, then change the map. It should be at the very bottom.Infinite ammunition or power
This trick requires levels that have either Covenant or Marines following you. If you have a powerful weapon that has very limited power (for example, the energy sword, or Covenant sniper), or weapons that are very powerful (for example, Human sniper or rocket launcher) give them to the A.I. following you. As they use them, the weapons will never run out of power or ammunition. Also, they can use them very well.
Infinite ammunition in campaign mode
To do this trick, your weapon must be reloadable and have at least one clip in it. When your weapon has no shots remaining, before you reload, switch to your other weapon. Find an ally that you can switch weapons with, then quickly switch to the weapon that needs to reload and swap with the ally. If done correctly, you will see your ally reload the weapon. Swap your weapon back to see that your clip is now full, and it did not take away any ammunition.
Have the same primary and secondary weapon while not dual wielding
This trick can only be applied to weapons that can be dual wielded. For this trick to work, you need four dual wielding weapons in one place. Two or three weapons of the total four weapons must be the same, but remember a minimum of two of same weapon is necessary in order to have same weapon for both primary and secondary slot. For example, have two needlers, an SMG and a plasma rifle. To get two needlers, carry one needler as your primary weapon then select anything else but the needler (such as the SMG gun) as your secondary weapon. Note: You cannot select the same weapon as your secondary any way. Dual wield plasma rifle with the SMG then go to the needler that is on the ground, hold X, and substitute the second needler with the SMG gun. Then, throw the plasma rifle away by pressing B. You are left with the Needler as both your primary and secondary weapon.
Using a destroyed machine gun
You can use a destroyed machine gun; for example, in Zanzibar after you fire a rocket to one of the turrets on the left and right on the main base. Just go back to them and the screen will prompt you to hold X to operate. This can be useful during heated sessions.
Hijack a Bansee
Wait until a Banshee drops quite low (but you still cannot reach it). Jump before doing it. If it does not say "Hold X to board enemy Banshee", press X regardless. You might not see Master Chief leap up and hit the Elite (or other alien) out of the Banshee. Do not go too low, and drive slowly because the Elite might kick Master Chief out.
Hijack a Wraith
Go near a Wraith and press X. Then, press B a few times. Instead of throwing a grenade, just hop in. If this does not work, throw a grenade in the Wraith.
Banshee tricks
When in a Banshee, press A and a direction on the Left Analog-stick. When in a Banshee, hold A and press Left Analog-stick Down. The Banshee will do a backflip. Additionally, to do tricks in a Banshee, press Left or Right on the Left Analog-stick and hold A to do a barrel roll, or hold Down + A to do a loop.
Ghost tricks
In multi-player-mode, turn on all vehicles and go to a place with open space. Get in a Ghost and find a tank. Go towards it as fast as you can. You will flip and do different things, depending on where you hit the tank.
Go to any level (Metropolis recommended, when you have to get on the Scarab). Back the Ghost up to the side of the bridge. It will start hopping up and down.
Chose a level with the yellowish glowing boxes that blow up (Headlong or Waterworks recommended). Get in a ghost and boost into one of the tiny boxes and you will be sent flying. You can repeat this as many times as desired, or you can pile the boxes and be blown sky high.
Spectre tricks
When using a Spectre, go at top speed and hold A. You will do a wheelie for about three to four seconds. This is useful when climbing up walls or going over short walls.
Stealing vehicles
When playing a multi-player map with vehicles, you can steal vehicles such as the Wraith from your opponent. Approach the vehicle while holding X. Note: This removes your opponent from the vehicle only; you must press X a second time to board the vehicle.
To hijack a Wraith, you must get up close to it by first destroying the side guns. You will get a message to press X. Do so, and you will be hanging on the side of it. Then, tap B to punch the door in. Next, press L and throw a grenade in. Jump off and go back in by pressing X, and you will now be driving the Wraith.
When you board a Wraith of Scorpion tank, the "B to melee" message will appear. Melee until the cover is knocked off, then continue punching. This will kill the driver without damaging the tank.
Use the following trick to knock enemies out of vehicle safely. Note: This only works with a fast moving, non-flying vehicle. First, stand by a wall or something that they can crash into. Try to get the opponent to run you over, then jump out of the way after about a second of contact. He should then crash into the wall. When he does, go directly next to it and hold X. You should now be in the vehicle.
Snipe from vehicle
Piggyback on a Banshee. Before one member of your team gets into the Banshee, jump on top of the Banshee's pilot cover. When you get in, you can just stand on top of it. Only make turns with the Right Analog-stick. They are slower and do not tilt the Banshee. More than one player can stay on top of the Banshee. This provides extra fun if you want to do aerial tricks with friends by jumping from Banshee to Banshee.
Piggyback ride on vehicle
With almost any vehicle, you can get a piggyback if you are not skilled at driving or need a fast ride when someone on your team is already on a Ghost. This also works with the Scorpion, Banshee, and the Warthog when you have someone in the gunner seat, when you are all far enough away from the enemy.
Vehicle explosions
In a multi-player level with vehicles (Ghosts recommended), stand in front of one of those barrel things that explode. Wait until someone in a Ghost sees you, throws it in turbo. and tries to run you over. At the last moment, jump out of the way. If done correctly, the vehicle will shoot past you, fly into the barrels, and explode; killing the driver instantly with a huge explosion.
Send tanks flying
While playing on a map with two Scorpion tanks available (Coagulation recommended), have a friend drive his or her tank up against a canyon wall until it flips upside-down, and your friend falls out. Drive your tank over to your friend's tank. Face the side that looks like a ramp. Line your tank up and start driving up it until one is on top of the other. While you are still in the top tank, have you friend walk over to the bottom one. The "Hold X to flip tank" message will appear. Once flipped, the bottom tank will send the top one flying high into the air (sometimes above the level), spinning at incredible speeds. After awhile, the tanks may start to catch fire and wear-down.
Destroying a Ghost
To destroy a Ghost in one hit (sniper rifle) or three shots (battle rifle), look on the left side of it, just under the driver's seat. You will see a gas tank of sorts. If you shoot that directly, the Ghost will explode with one hit or one burst from the battle rifle.
One of the best ways to take down a Ghost is with a sniper rifle. Wait until the Ghost is facing away from you and open fire at the pilot. If the pilot does not die, the Ghost may explode, because it is very vulnerable in the back.
Destroying a Wraith
Besides boarding, there is one other reliable way to take down a Wraith in single or multi-player mode. Get a Ghost and hit the booster until you are right up against the Wraith. Then, circle around to the back of it and open fire. By the time he has fully turned around to get a bead on you, he will probably be dead. If he tries to get out, you can simply pick him off as he is climbing out. Note: This may not work as well in single player mode, as the Wraith has anti-infantry plasma cannons.
Next generation Warthog launch
This trick is reminiscent of the Warthog launch from the original Halo, but uses different methods. First, start a split screen multi-player game with just yourself on a map that has any explosive boxes (Headlong or Waterworks recommended). Then, find any of the explosive boxes and gather them in a pile near one end of the map. You can move them by pushing against them or meleeing them. However, do not melee them more than once or they will explode. After you have gathered enough, park a Warthog over them slowly and fire a rocket at one end of the Warthog. Depending on how many boxes you gathered, the Warthog should go incredibly far. Note: This takes a lot of skill and time, and should only be done if you have nothing else to do.
Rewards for straight killings
The following is a list of rewards you get from killing people without dying once. Note: After 25 it starts over again with "Killing Spree".
5: Killing Spree
10: Running Riot
15: In The Zone
20: Unreal
25: Unfreaking Believable
Melee combo
When caring an item (bomb, flag, etc.) quickly press Melee, X, Melee to perform a combo melee attack. Continue pressing Melee, X, Melee, X, etc. to make the combo continue indefinitely.
Melee, shotgun, melee combo
While equipped with shotgun, get in close range and press Melee, X (reload), Shoot, Melee. Note: You must press X immediately after the first melee is finished.
Plasma rifle, melee, shoot rage combo
While holding the shoot trigger, press Melee, and immediately after the hit, press X (which instantly continues you back into shooting). Note: This can be done as long as you do not overcharge the plasma rifle.
Double whack energy sword combo
When using an energy sword, press Melee, X, Shoot. This combination can happen very fast.
Infinite energy sword ammunition
When the energy runs out, do not trade it for another weapon. When you get to the next level, try to use the sword. The ammo will be at zero but you will do full sword damage instead of melee damage and can do sword moves.
Instant kill
To instantly kill any enemy except Hunters and Bosses, hit them in the back with any weapon.
Easy kills
The plasma sword is one of the most deadly weapons in the game. However, there is a way to make it deadlier. If you are walking up to someone, you will see the aiming reticule turn red. If you press the trigger or B, you will deliver a deadly lunge that can kill almost anything in one hit. To make this even deadlier, before you reach your enemy jump and keep aiming at him. When the reticule turns red, you will still be in the air. As you are in the air, press the trigger or B and you will lunge forward in mid-air. This is more deadly because you are above himm and his head is the closest thing to you when you are in mid air.
Get two Magnums (pistols) and shoot one trigger at a time. Do not use against the Flood, as it will backfire and kill you.
Sword cancel
To sword cancel, rapidly press B + X. This will let the sword swing wildly and is also a good way to shock opponents. To swing your sword at an enemy but not hit them (canceling your attack) press R + X. This will only work when you are locked on an enemy.
Faster reload
When reloading a gun, press melee immediately after the ammo is reinserted into the gun, press X. This enables you to shoot and/or zoom instantly. This works for any gun that uses ammunition.
Accurate SMG Dwing
When DWing SMGs, press one shoot trigger at a time simultaneously. This disables the reticle/aimer from going upwards. Note: This also works on other DWings.
Lock on with rockets
To lock on with rockets, target a person, vehicle, etc., then hold R until it says that it is locked. The red reticle will follow the item. Release R to fire. Additionally, while using a rocket launcher, you can lock-on to the following items: turrets, vehicles, and the Phantom's plasma cannons (Covenant Dropship's turrets). To lock-on to those objects, aim your cross-hairs at the object. By doing this, your rocket launcher's cross-hairs should have four red squares on the corners. Then, hold Fire so that the rocket launcher will fully lock-on to the object. While this happens, the lock-on system of the rocket launcher should make a few repetitive beeping sounds. After the beeping sounds have ended, the cross-hairs should be completely red and ready to fire. Release Fire and your spiraling heat-seeking rocket launcher missile will go to the target.
Switch grenade types
If you have picked up a frag grenade and a plasma grenade, press Black to change from one to another.
Practice with the sword
To get some good practice in with the sword, you must have two players, both with swords. Practice hitting each other. This is useful for combat with the Royal Elites.
Flying sword
Have the sword when an enemy is very close. You can jump and do it, or run and jump to them, then press B. This is a one hit kill for Flood, and a two hit kill for some Covenant and the shield Flood.
Extra ammunition with dual wield weapons
Have two dual-wieldable weapons (for example, a Needler and an SMG), but do not have them out at the same time. The Needler would be the weapon that you want extra ammunition for. Have the SMG out and find another Needler to dual wield with it. Then, find yet another Needler and trade that with your SMG. You will now have three Needlers, and have three times the ammunition.
Dual wielding recommendations
When dual wielding, it is best to think about things before you just grab a needler and a plasma pistol, and have a pistol as your third weapon. You should make it so you have a good backup weapon; when dual wielding, ammunition can go quite quickly. Have two plasma rifles (or your choice) and have something like a particle beam rifle, shotgun, Covenant carbine, or perhaps a rocket launcher so that you have something to fall back on. Some suggestions are as follows:
Needler x2
Plasma rifles x2
SMG x2
SMG and a plasma rifle
SMG and a plasma pistol
Note: Having two plasma pistols is not a good choice because you cannot hold the two triggers down, or you will power them up. You must keep pulling, making this somewhat difficult. When wielding two weapons at once, use only one at a time, and when that runs out of ammunition, use the other one while reloading. Do this to keep up a steady stream of fire.
Dual needlers is probably the most underestimated weapon pairings available in the game, and probably the most powerful as well. Needlers have an incredibly fast rate of fire, are heat seeking, do initial damage then explosive damage, and you can pick up usually 80 to 160 ammo after each bout of gun fighting (in campaign mode). The only bad thing about needlers is the fact that they ricochet off shields and some body armors (for example, Hunters and the Elite Guard). They are not recommended for fighting shield wielding enemies, Hunters, Elite Guard, or Infected Flood (as they are extremely quick and will most likely do damage to you before the needler shots explode in them). In multi-player mode with friends, there should be nothing more feared then dual needlers.
A great dual wielding combo are two plasma pistols. Early in the game, two blue ones will do. Later in the game when you begin to fight the Brutes, after they die take their red plasma pistols. The red ones are slightly more powerful and overheat a little bit faster. A red and blue plasma pistol is recommended, as they compliment each other very well. If you have fast trigger fingers, any enemy will die. Even Brutes will die within around five seconds. Be careful; watch your heat and ammo meters. The plasma pistols are very good because they are powerful, and get rid of energy shields very quickly.
Use the following trick for easy kills by dual wielding a plasma charger. Get one plasma and any other weapon of your choice (SMG, plasma rifle, needler, etc.). Next charge your plasma pistol and keep it charged. If you get a hit on your opponent, his shields will be down and you can kill him within two seconds with a normal gun.
The best dual wielding combo is the plasma rifle and the sub machine gun (SMG). The second best is dual SMGs, and the third best is a plasma pistol and pistol combo.
Dual wield a plasma rifle and a plasma pistol. While the rifle is firing you can charge up the pistol, and while the rifle is cooling down shoot the pistol charge.
Do not be afraid to retreat for a moment to let your shields recharge and reload your weapons, especially when dual wielding.
Defeating Brutes
Get a Plasma Sword from a dead Covenant Elite and get close enough to the Brute for the half-circle surrounding the crosshairs to turn red before attacking. You will lunge forward and get rid of half the enemy's life. Jump into the air immediately afterwards, and do this a second time to kill him instantly. Both attacks combined cost only ten ammo points, so this process can be done ten times in succession, making it an effective way to crowd-clear Brute patrols near the end of the game. Make sure to jump in-between each strike so that the Brutes you are fighting cannot continue to ram you and drain your life. Additionally, on the last level when you are fighting the head Brute, wait for his shields to go off (when the blue gas-like thing around him shuts off). Then, shoot him in the head as many times as you can until it turns back on. Repeat this process until he is dead. Do not use an energy sword. It will not work, and he can kill you with one hit of his hammer.
When you are facing several Brutes together, such as in the Uprising level, use a weapon with good accuracy, such as the pistol. However, this may be difficult because it no longer has a scope on it. The Covenant Carbine is a good choice because it has great accuracy, a zoom, and a usable clip size. When using the carbine, aim for the skull plating they have on the top of their head. If you are a skilled shot, this should kill the Brute in about four to five shots. Have something like the energy sword as a backup in case there are too many and they charge.
Two direct head shots with a beam rifle are required if they are wearing a helmet. Pack some heavy artillery. A fuel rod cannon or rocket launcher may be cheap, but they cannot charge you if they are blown up. A few hits with the brute shot can also work; there should be plenty of ammunition for it. If all else fails and they charge, a shotgun or the blade on the brute shot can work, but it will require three shots to the face with a shotgun and three hits with the blade.
The best combination of weapons against a Brute is to use two plasma rifles. Brute plasma rifles are recommended, as they are slightly stronger and shoot faster with a slower heating process. Run up to any Brute (this actually works for all enemies except Hunters) and fire both of your plasma rifles in sequence. This means that first you fire the right (or left) gun until it is nearly overheated, then stop firing that one and begin firing your second one until it is nearly overheated. Again, start firing the other one. Keep doing this in sequence and the only thing that will stop you from shooting is running out of ammunition. A good way to do this properly is to count how long you have been shooting. Shoot with one gun at a time for about three to five seconds, then begin shooting the other one. This is very useful for big groups of opponents as you do not have to reload or wait for your weapon to cool down.
On the final level, once you reach the door that leads to the final battle, a group of Brutes will come out. Instead of fighting them, use your invisibility gear and sneak through the door without having to fight. Note: You must be fast or the door will lock.
The Brutes' weakness are their heads. That is why they usually have metal plates. Shoot them in their heads for an easy kill.
Defeating Elites
When battling with Elites, do not hit them once with your weapon. Always hit them multiple times. If you hit them once, they will have a faster time and kill you with one hit or take down your shield. Additionally, an easier way to kill Elites quickly is to double-wield the SMGs and aim for the head. Be careful, as the SMGs tend to send the reticle upward. Also, try meleeing him before using the double strategy.
You can outsmart Elites in some battles by finding cover and returning fire as usual. However, when they stop firing, relocate to other sources of cover and have a few seconds before they notice. Also throw grenades before they get all the way out, if they are appearing from a door or a ship portal.
Dual wield a plasma pistol or rifle and a Human pistol. Use a plasma pistol or rifle to knock down the shields quickly, and then shoot them in the head with the magnum.
The best way to quickly kill an Elite is to hit them multiple times with your weapon. First. hit them so they are stunned for a few seconds, then shoot them quickly. They should die easily.
Defeating Floods
Get a Plasma Sword from a dead Covenant Elite and get close enough to the Flood for the half-circle surrounding the crosshairs to turn red before attacking. You will lunge forward and kill the enemy instantly, sometimes killing two or even three if they are in close-enough proximity to the target. This attack only uses between two to five ammo points, so it can be repeated at least twenty times. Note: Do not use this trick on either the small spider-like Flood or the large bulbous Flood, as the explosion that follows will damage your shields. Additionally, to kill the Flood easily, use the sword. It cuts right through the Flood in one shot, unlike any type of plasma gun.
To make fighting Flood easier, use a shotgun and an energy sword. The Flood levels are mostly close quarters -- shoot them in the face with a shotgun. This will take down even a shielded Flood in one hit. Then, use an energy sword to vaporize the bodies so that they cannot get back up. The best part is that it will not use any energy sword power.
You can actually kill the human and elite Floods with one shot of the Covenant carbine. Aim directly at the stomach for the human-type Floods (with no long tentacles in their left arm); and aim high in the middle where the head would usually be for the Elite-type floods (with the long tentacles).
Defeating Grunts
With big groups of enemies, kill off the Grunts first, as they are easier to kill and become less of an annoyance. Additionally, two slashes with the plasma swords are good against Grunts. However, hitting them with the grenade launchers three times can kill just as easily and does not use any ammunition.
Get a needler. Find a grunt and aim close to his head. Shoot him and he will jump in the air and die.
Defeating the Heretic Leader
It is best to have dual Needlers and a Sentinel Beam when you are playing under the legendary difficulty setting. As soon as game play resumes after the intermission sequence, press White to turn invisible. Then, press Y to get rid of one of your guns and stick a plasma grenade to one of the guys. As soon as you do that, run to the left and behind a column. You should see a hole/hallway kind of thing. Go in there and hide a short time. You can then run out of the hole, turn invisible, and stick another grenade to one of them. If a grenade explodes and you hear a grunt or yell, you have hit the leader and not the copy. Go back and hide in the hole. This will save a checkpoint. The guy will start talking and more copies will appear. Repeat the process until he is dead. Note: Whenever you kill a copy of the Heretic Leader, it will drop several grenades, allowing you to restock.
Defeating Hunters
Get a beam rifle (the Covenant sniper rifle) and fire it in the middle of their bodies where it is pink. This is more effective then pumping shell after shell into them. Because they have the new gun, getting close to them no longer works. There is another way to defeat them, but it is more costly. First, take your plasma grenades and throw about two or three of them on their pink skinny area. Then, get a shotgun (or the strongest gun you have) and pump the pink spot full of rounds until it is dead. Since they usually appear in pairs, this can waste a lot of ammunition and grenades.
You can kill Hunters without using any ammunition. If there is a Human turret nearby, use it. You will do so much damage that they will drop quickly. You can also still get close to them. Remember that you are a lot faster than they are, and pay attention to where the other Hunter is located. Sometimes you can get them to hit each other. It is also possible to melee attack them to death, but a lot of your Marine allies will probably die.
When you encounter a Hunter on any level, use your melee attack and hit them in the head. They will stand there for a moment, stunned. This is just enough time for you to get behind them and kill them. Depending on how skilled you are, it may take a few times to take them down.
When you see a Hunter, find a turret close by. Man the turret like in the Outskirts level. You must kill two Hunters to move on. There will be a turret upstairs, and when they come out, open fire on them.
When a Hunter charges, move out of his way. When he misses you, the pink spot on his back will be wide open. Use the weapon of your choice to blast him.
Defeating Prophets
To kill Prophets, you must dodge there laser attacks and get up close until the message to hold X to board appears. Do so. Once onboard, tap B to attack them. Three hits should kill them. If not, repeat until it falls.
Defeating Regret
To easily defeat the prophet Regret, jump on his vehicle then hold X to board it. You can then press B to melee him to death.
Defeating Royal Guards
To easily take down Royal Guards (red Elites with strange helms), attack them with the energy sword. Do not be afraid -- keep slashing. They will fall after about three hits. Note: If it has a energy sword, you must get the first hit or it can kill you with one shot. Do not let their armor fool you -- they are still Elites. Knock down the shields with a plasma weapon, then shoot them in the head with the pistol.
Defeating the Scarab
Instead of following the Marines, go staight across the bridge. You will find a sniper. Take it, then jump on the Scarab and shoot all the Elites and pilots. Additionally, if the people on the Scarab are taking down your shields, get on the gun turret. Fire at them madly. They will hide and allow time for your shields to recover. Then, jump on the Scarab and blow their head off by surprise.
When you fight the enemies on the Scarab, mostly Elites and Grunts, start running down the path. You will see rocket launcher ammunition. Collect it if you have a rocket launcher, as it will make battle easier when you enter the Scarab. Your second weapon should be a shotgun or dual plasma rifles in case you lose rocket launcher ammunition.
Defeating Tartarus
When playing in co-operative mode under the legendary difficulty setting, get a grenade launcher that is left over from the Brute on the bridge. When Tartarus jumps onto the spinning disks, jump onto the platform with your partner, then jump on the three disks for safety. Let your partner have a carbine rifle on the top level and have him snipe reinforcements when they arrive. Run around the middle circle, waiting for Tartarus to lose his shield from Sarge sniping him. Hit him with your grenade launcher. Hit him three times, then run away and wait. His reinforcements may appear. If they do, camouflage and run to the top level. Allow your partner to kill the Elites. Camouflage if Tartarus or Elites come to the top level. Note: Use your Brute plasmas if you run out of ammunition. There are some on the middle level, and perhaps the bottom level. Make sure your partner conserves his carbine rifle ammunition. Never fight a Brute Elite, as they will kill you in a few hits. Also, never hit Tatarus with a melee attack. Never use grenades as Tartarus will just jump. The most important thing is to not allow your partner to die. When doing this in single player mode, use the same tactics except when Elites arrive, camouflage yourself then go to top level and snipe with the carbine rifle.
When the intermission sequence ends, do not rush towards Tartarus like the others. Instead, just wait until they all jump to the other side, then jump over there. Or, you can wait for the moving platform to help you get to the other side. After you have done that, Tartarus will have a sort of "fog" around him. Get a plasma gun. Note: If you cannot find one, go to the lift, and on the top floor behind a wall there should be a box from which you can get one. Dual wield the plasmas and fire at him until the fog goes away. Then, keep shooting at him with the plasmas until he dies. Alternately, when his shield depletes, drop your gun and throw a grenade until he dies. Be careful though -- stay a good distance away to avoid being hit and killed.
When playing on the legendary difficulty setting, instead of getting out of your Banshee when entering Tartarus' base, fly it inside and up, using the boost. You will scrape the ceiling and run into the wall at the end of the tunnel, then run into the door. Get out, open the door, and take your Banshee inside the door. Kill the Covenant with it, or get out then keep flying through the doors. When you get to the intermission sequence, you will be out of your Banshee on a platform with Tartarus in front of you with some Brutes. Kill them, then turn around and go back down the hallway the intermission sequence skipped. Your Banshee will be sitting there, ready for takeoff. This makes defeating Tartarus much easier. Continually fire at him and when the sergeant takes out his shield, it will hurt him until the point that he dies. If he tries to jump on you, just boost under him. Watch out for his Brute friends that he calls -- they are very accurate with Brute shots and plasma grenades and will kill you. Also, do not fly under the platform.
Get two Brute plasma rifles and run away. When his shields are down, throw grenades then shoot him. He should die quickly.
In the last level of the campaign called The Great Journey, get to the part where you enter the control room. Instead of walking through, bust your Banshee through. When you enter the room with the Brutes, get out of your Banshee and kill them. Note: They might destroy your Banshee. Then, kill the Honor Guards. Make sure your Banshee is in the room where you fought the Brutes. Continue on foot until the intermission sequence starts. When it ends, turn around and run back. On your way through, your friends will teleport there. Keep going and get in your Banshee. Note: Do not go below the last platform levitating in the main room or the game will automatically kill you. Then, drive your Banshee to Tartarus and shoot him. Pressing B will shoot your bomb. When his shield gets down, shoot him as hard as you can.
Defeating hijackers
Use the following trick in multi-player mode with someone that is trying to steal your vehicle. When you definitely know that they are trying to board your vehicle, press X to hop out as they board. This will give you about three or four seconds to blast them before they can get a bead on you. This requires some skill, but works very well. It is possible to take out a Banshee, Ghost, and Warthog with one SMG by doing this.
When someone tries to steal your vehicle (and it is not a Banshee), allow them to do so. When you hit the ground outside the vehicle, press X as fast as possible. You should steal the vehicle back from the person. Move quickly away from them or they will do the same thing to you.
When someone is hijacking your Ghost, Warthog, Specter or Banshee, wait for them to almost take it away from you (just before you lose control of it). Press X quickly to get out, then immediately after you press X, hold X. You will ditch your Ghost or other vehicle, and will not kicked off and can now hijack it back.
Defeating opponent that has an energy sword
Your best chance of killing your opponent before he slashes you is to dual wield SMGs. When you see the enemy from a short distance, just let loose. The bullets will most likely stop the enemy from advancing and will kill him.
Grunts Birthday Party mode in The Arbiter
Play the mission on the legendary difficulty setting. Proceed until you reach the first Banshee section. Immediately fly straight down to the bottom of the level. Search the cracks where the large cylinders connect to the station to find a circle of Grunts dancing around a skull. Get the skull and the words "Grunt Birthday Party" will appear. When you get the skull, all headshots that kill the enemies will cause them to explode as if a plasma grenade were attached to them. This works well if you aim for a Grunt in the middle of a group of enemies. Also, this may only work for projectile weapons, but does work for the Covenent carbine and the Covenent sniper rifle.
Run extremely fast in The Arbiter
On the first Arbiter mission, go to the Banshee part. Find a steeply slanted beam. Fly to it get off and go up to the top. Jump once, and once you land, jump again. Do until you die and it will look as if you are running down the beam very fast.
Skull in Armory
Complete the mission orders until someone asks you to go in the elevator. Wait until he says "Will you come in if I say please?" and walk in. When you get into the tram, face the Earth and hug the wall. Hold X for the entire ride. Eventually you will pick up a skull that says no clue to what it does (no word will appear, as with the other hidden skulls). Note: You cannot keep it as a weapon, as it is taken away after the intermission sequence. However, you can beat up the man with it.
Easy completion in Armory
When playing on the legendary difficulty setting, get to the part where you are in the shuttle bay where the Covenant have boarding craft attached. You can complete this level two ways. The first is to kill the Grunts with the battle rifle, then pick up a plasma pistol. Use the plasma pistol to lower the Elite's shields, then quickly take out the battle rifle and kill them before they take cover. The other method is to get a number of plasma grenades and stick them on Grunts. They will run to the Elites and kill them.
Sniping locations in Ascension
There is a great sniper location in the Ascension multi-player level. Get the sniper rifle and an SMG or a rocket launcher and grab the Banshee. Fly to the space between the two slanted forklift-type things immediately above where you would start if you were player one. Land, and get out. The Banshee will probably fall. Run up the slanted area and you can see the entire field. Because you cannot die from high places, you can drop down for a reload then fly back up.
Take the Banshee and park it on top of the tower with two beams coming out of its top. There should be a good location for your Banshee at the beginning of the two beams. On a team, have one person takes one and the other use the other beam. Remember to go to the end of them to get the best view. If you are alone, you have an advantage. If someone starts shooting at you, you can jump to the other side. You should be too far away for them to notice. If you fall off, take the rocket launcher or duel SMGs to protect yourself.
Use the Banshee and fly up to the two poles above Sniper's Roost. Make sure you have a sniper rifle.
Fly very high in Ascension
Play the Ascension map in multi-player mode. Take a rocket launcher and before you go on the thing that shoots real high in the air, shoot downwards. You will fly up twice as high, but will be dead.
Hidden weapon in Battle Creek
Go to the Blue base. Run to the end of the base where the ramp is located. Tilt your gun to the bottom in the "northeast" direction. You should see the "Hold X to pick up weapon" message. Hold X to pick it up. This is a hidden weapon which is useful when cornered without any ammunition.
Hidden message in Beaver Creek
In multi-player mode, go to the sniping location where you are able to push the rocks down in to the creek. Roll down all the rocks and look at the spots along the wall where the rocks were placed. You will find a message that reads "Why am I here" with someone's initials under it.
Fall through level in Beaver Creek
Play the Beaver Creek map in multi-player mode. Go up to the sniper rifle and walk across the edge so that you are behind the rocks. Turn to your right and look at the tree in front of the sniper rifle area. Jump and land directly in front on the tree. You will sometimes fall through the level and the game will say that you were killed by the guardians.
Sniping location in Blood Gulch
At the Red base, get a Banshee. Get on top and face toward the Blue base. Turn right and go over. Follow the wall up and close to the top. You can get out there and snipe from this location.
Get on top in Burial Grounds
Use the Ghost or a miss with the energy sword to get up on the level. You can walk around the dunes, but invisible walls will stop you.
Sniping location in Burial Mounds
There is only one sniper spot, and one turret. If you are on a team, try to stay in the turret and on the following sniping spot. When you are alone, just take the sniper spot. To get to this sniper spot, take a Ghost and use boost to get on top of the sand hill on the side of the level, around the purple machine things.
Get on top of level in Cairo Station
When you get to the air lock part where the screen enters a cinematic view and the phrase "Authorized personnel only" appears at the bottom of the screen. Elites with jetpacks will come to attack you. Run past the flying Elites. Run out into space where in front of you is a pillar that slants upward. Walk all the way up to this pillar and jump on it. You should now be on the pillar's slanting portion. Walk up the pillar and you should be on top of the ship. Turn right and go straight until you pass two hallways to the right of you. You should now still be on the silver-brown part of the ship. At the very end of it you will see your path slant to the right slightly. You now can see that the only place to go is on the blue part of the ship. Jump from the silver-brown part of the ship to the blue part. Look to your right and you should see a upward path. Climb it. If desired, you can go sightseeing to your left "towards earth"; there is nothing but the cannons of the ship. Once up on the elevated part of the blue ship, you will see a gap between the blue ship and the silver-brown ship. Jump on the silver-brown part of the ship. Once on there, run towards your right. Do not go down the orange glass plated window that slants down; this will leave you at a dead end. If choose to go that route, there are pillars here that will allow you back up, like on the first step of getting up on the ship. You will come across orange windows. You will fall through some of them, but not enough to not be able to get back up (simply a few feet). You can look down into the ship from the top plated part of the glass. Jump out of these if you come across many of these non-solid pit holes. Some orange plated windows laying on the ground that have force fields. Hold Forward and jump to clear them. This can go on for a very long time.
Marine in machine in Cairo Station
Go to where the bomb is. Go out of the elevator and turn directly to your left and move down the hallway. Turn right and you should see no enemies, but a Marine. You will need to do this quickly. Push him up the stairs, but do not attract the guards. This will make him move. Then, push him into the ammo feeder and watch him get pushed into the wall. He will disappear. Note: If you do this, you will die and fall through the level or land on other platforms you previously visited, like the Pelican in the hangar.
Johnson's cigar in Cairo Station
In the first level, as soon as you get off the lift do not go on the train. Instead, look to your right to find a trash can. Go over to it, crouch, and look in between the can and the wall. There should be a Johnson Cigar burning away. Additionally, go to the armory. As you are coming up the stairs, you will hear the man shooting his shotgun and talking. Kill the Elites and go through the door. Jump over the turret and look to the right. Jump on the lights sticking out of the wall, then jump over the rail. Get on one of the beams and jump off it onto one of the rails. There will be a small room with no doors. Jump onto that and bash the trash can. When you look on the floor, you will see Johnson's cigar.
Johnson floating hat in Cairo Station
After things start and you are getting some weapons, go down the stairs. You will see a hat on a box of gear. Melee attack the box from under the hat, and it will float.
Sniping locations in Coagulation
The best sniper spot is at the Blue base (the one with all the shadows), on the rocks above. Fly your Banshee there and land on a flat rock. You will be covered by shadows and have a view of the entire level.
Near the Blue base there is a sniping location at Mt. Erectus. You can get up there with a Banshee, Ghost or a Specter.
At the Red base, get a Banshee. Get on top and face toward the Blue base. Turn right and go over. Follow the wall up and close to the top. You can get out there and snipe from this location.
Find a Banshee and a sniper rifle. Fly to the Red base. Turn so that you looking at the Blue base, and then look to the right. You should see the boundaries. Fly over to the wall and you should see a slant. Land on the slant and you should be able to snipe from there.
Go to the Blue base and when looking towards the Red base, look to the right. You should see a shadow from a big piece of rock sticking up. This is a good sniping spot, because when you are in danger you can hide behind the piece of rock sticking up. A Banshee is needed to reach this location.
Banshee snipes in Coagulation
Get a Banshee and fly directly behind the Blue base. Land up there, then get left (behind) the Red base. Then, get in the peak of the rock point by the Blue base.
Ride the walls in Coagulation
Take a Spectre, Ghost, or Wraith and use boost to get behind the Red base. Ramp over any ridges and rocks. Go up on different rocks and ride along the walls sideways. Additionally, on the right side of the Blue base, take a Ghost and boost at the wall. There is a location that lets you drive straight up the wall. This trick has no strategic advantage, because as soon as you hop out of the Ghost both you and the vehicle will fall down.
Get a Ghost and ride into the wall while holding A. You will begin to go straight up the wall. This only works in some places, like behind the Blue base and slightly to the left.
Get near top of level in Coagulation
Play a game at Coagulation and make sure you have Ghosts. Play as the Red team and get a ghost. Get on the hill behind the Red base. Lean up against the right side of the lower rock (if you are looking at the Blue base). Turn slightly uphill until you see a vertex where the land goes upward and meets the cliff. Face it. Strafe right about five game feet, but do not move your aim. Press L and hold Forward until you reach the top. You may need to turn slightly once you Ghost moves up the wall a short distance.
Run on air in Coagulation
Set the game so that the main weapon is the energy sword. Get a Warthog and put it at one end of the level. Have one person get in the passenger seat and look at the other player. When you lock on, hold R. Then, have the second person to go to the other side of the level. Have the other player hold X. When the player gets out, he will run in air. He will run until he gets above the other player. If you are skilled, you can get the player on the top edge of the level.
Boost high into the air in Coagulation
This trick requires a Wraith with overshields on. Locate the rock that sticks out. Stand up against the wall that sticks out and have someone hit you with the Wraith when they boost. If done correctly, this should shoot you extremely high in to the air. This also can work on almost every map with a wraith, but you must have oversheilds on to avoid getting killed.
Fly to rock in Coagulation
Get a Warthog and face the passenger seat to a rock far away. Get a sword and get in the passenger seat. Then, have a person out of the Warthog stands by the person in the Warthog. The person in the Warthog must lock on, and when the reticule turns red, attack. It will make a sound. The person who is out of the Warthog should get to the rock and stand on it. Then, have the person in the Warthog get out. They will fly across the stadium to the person on the rock.
Spinning tanks in Coagulation
This trick requires a Wraith, a Scorpion tank, and oversheilds to be turned on (recommended). Have the Wraith and the tank ram each other. As they hit, have the person in the Wraith hit the turbo. This should glitch the tank and cause it to start spinning uncontrollably and bounce off of a lot of things. this glitch is alot of fun to do but it can be hard to do.
Grenade does not move in Colossus
Throw a grenade on a conveyer belt. It will stick to the ground, but not move with the conveyer belt.
Envy mode in Delta Halo
Play the mission on the legendary difficulty setting. Continue until reaching the area during the "push through the covenant held ruins" phase where a landing zone for the Pelican to drop weapons must be cleared. When you reach the area where Cortana says "They're pouring out of the center building", note the plasma turrets along the borders. A short distance after the turret on the left side is the outline of a sealed door in a wall. There is a rock in front of the door. Jump on the rock, then jump onto the ledge above the door. Next, jump to the ledge to the left. Then, grenade jump onto the building with the sealed door. On the roof of the building are two dancing Elites and a skull. Get the skull and the word "Envy" will be displayed. You can now use active camouflage.
Warthog in Delta Halo
In the beginning of the level when you are storming the hill, it may be tempting to pass by this part. However, stay in that area until you survive both waves of Covenant that the Phantoms drop off. A Pelican will appear afterwards and drop off a Warthog for you and your teammates.
Flying tank in Delta Halo
Drive the tank around until you get to the part with all the stationary Covenant shields. Blow the shields up then quickly park the tank on several of them. Get out of the tank and then watch as the shields reform. The tank will fly, doing spins. This is even more enjoyable when you are in the tank. You will die when in the tank and it flies very far. You can also try this with other vehicles.
Get the tank and go to the area with the big castle in the middle, where you get men and ammunition. Bring the tank up to the shields (four or five), and shoot the shields with the main cannon. Go onto the shields and wait until they respawn. You will see the tank spin very fast and go very high. Note: You will die and respawn.
You will get the Marine tank after activating the bridge. You will reach a structure which the Marine will point out is the second structure. After you hear one of the Marines say "A pelican is coming in. Let's clear an LZ", you will come up on some Covenant hiding behing about six or seven lined up shields. Destroy all of them, then wait for the shields to reappear. Then, shoot them all to make them deactivate. Immediately park the tank across as many shields as you can. Get out, stand back, and the watch the tank fly.
Acquire a Scorpion tank. Then, proceed with the mission until you reach the ruins of a complex. Slaughter all the Covenant, then reach the top platform where the energy shields are located. Knock out the shields, then drive your tank on top of them. Position it correctly, and when the energy shields appear your tank should go flying through the air.
Get on top of the level in Delta Halo
By doing this trick you will be able to drive around the mountainous rim of the entre level and to actually drive or walk under the water and all the structures. After crossing the drawbridge and taking care of a few Ghosts, continue until you reach a courtyard with a pond in the middle and a stone structure in the middle of the pond. For the next part you will need a Ghost. At the entrance, turn to your right and you will see a few trees sort of all clustered together. There is a stone wall there that you cannot jump up. However with the Ghost, you will be able to get onto the green patch and beyond. Boost if you need to and be careful going around the mountains. You can still fall to your death. If you make it all the way to the opposite end of the level, you will find yourself on a very flat piece of land.
Get the Scorpion tank and go into the temples. Go as far as the point where the Pelican drops off guns and two men, but do not wait for this too happen or it will be too late. There will be a row of mounted energy shields (the big oval shaped ones). Drive on top of three of them. Get out of the tank and shoot the three shields. Get back in quickly. The three shields will reform, and the tank will go up, with you inside. Also, if you keep trying, your tank will land in a corner and on its back. Get out and flip it on the side that is going down. This will project you onto a higher platform. Once you are on it, run to the left of it. Walk to the left and you will see a dead body with a rocket launcher and a SMG next to it. It looks like one on the men with the black helmets and suits from the beginning of the level. There will be a giant rock next to it, with a hole big enough for you to crawl in. Once you get to the other side of the rock, there will be a jagged part of the platform going outward. Next to this will be the Pelican, still suspended in air. Jump onto it (while in mid-air, press Forward to give yourself a boost). Jump once so that the Pelican will mistake you for not being on it. Once the Pelican starts to lift, stay on it until it leaves the level. You will be walking out of the game space. Note: You can climb mountains and go to the edge of the other side of the level that you were never meant to see. This may require a few attempts, but is well worth it.
Easy kills in Foundation
There is normally a Ghost and Warthog on the lower level. To get one of them to the upper levels, drive it into one of the air units that makes you fly up. It is strong enough to bring up a Warthog or Ghost. You can now drive around the circle and run over anyone standing there.
Shoot rocket launcher through walls in Foundation
Stand at the bottom of the stairs with the rocket launcher by room two. Aim part way up the stairs and fire the rocket launcher. The rocket will go through the walls and explode inside room two.
Leave game boundary in Foundation
You can make it up to "white space" by rocket jumping up the second floor room with the slow rotating fan on the ceiling. After making it up onto the ledge below the fan, lean against one of the ledge's walls. While aiming straight down, rocket jump again to successfully make it to the top of the level. While on top you can successfully circumnavigate the entire level with the exception of the middle, which is blocked off by invisible walls. Note: This can only be done with a full overshield. Also while in this level on the bottom floor, a monkey riding a missile and a torn poster of an unknown figure can be found on some of the doors near the air-elevator.
Sniping location in The Great Journey
Play until you reach the part where the Scarab is going to blow open the door. Then, fly your Banshee down to the water and get out. Walk into the water and you will be invisible to your opponents. However, you will be able to see them, making this the perfect place to go under the legendary difficulty setting to kill your enemies without them seeing you. You may also take a Ghost or a Spectre down here. If you are skilled enough, you can even take them up very close to the top of the structure.
Pass from Scarab part to Boss in The Great Journey
When the Scarab blasts the door open, take your Banshee and fly to the right of the tower. When you reach a slanted part of the wall, fly as high as you can (hugging the wall), and turn your Banshee sideways. Get out. Climb up the slant and you can skip the part when you face the Brutes and land in the Boss room. This is very helpful if playing on the heroic or legendary difficulty setting. Note: Do the same on the left side on the legendary difficulty setting to find a skull.
Leave game boundary in The Great Journey
Wait until Sergeant Johnson blasts open the door to the control room, and destroy all the enemies. A Phantom dropship will appear. Get in a Banshee and fly close above the dropship when it stops. Get out of the Banshee, and stand on top, preferably close to one of its wings so that you will not fly off when it starts to move. Keep standing on it while it starts to fly away. If done correctly, you will fly past the level's boundaries. You will be able to see the peninsula with the control building in the distance. Eventually, the Phantom will disappear and you will fall deep into the water.
Zombie Brutes and Elites in The Great Journey
At the "Protect the Scarab" part, go through without killing anything. When you are at the beach, hijack all Banshees (also may work for turrets and Spectres), and all the Brutes will appear as "zombies". The worst they can do to you is walk into you. Occasionally, an Elite will appear with a Banshee for you. Push him in the water and he will be a half zombie (will duck sometimes). He should not harm the brutes, but if he does, kill him.
Underwater Ghost in The Great Journey
At the beginning of the level on co-operative mode, make sure you leave at least one Ghost unharmed. To do this, shoot the Brute out, leaving the Ghost "rideable". Continue the level until you need to protect the Scarab. Fly to your Ghost, then drive it off the edge and onto the beach. You will die. Get a ride on your partner's Banshee to your Ghost. You now can drive it underwater until you reach the second barrier (past the first barrier, at the part where the graphics go away). You can also climb up the tower with the Ghost.
Sniping location in Headlong
This location requires a Banshee to reach, but you will be next to untouchable once you are there. After getting a Banshee go to the right. Just after you have passed the cranes, carefully land your Banshee on or near the walkway that has the Human sniper rifle on it. From there, get back in your Banshee and go straight up to maximum altitude. If done correctly, you should be just above the top of a building that is slightly smaller than the two other buildings adjacent to it. Land your Banshee on it, but do not destroy it. Take out your sniper rifle and start shooting. From here, the only reliable way someone can kill you is with another sniper rifle, and they cannot physically reach you because you have the Banshee.
High platforms in Headlong
In multi-player mode, go to the Headlong map and make sure there is a Banshee. Get in the Banshee and fly over towards the opposite base. Between the Warthogs and the water, you will see a building with a ramp leading up to a flat surface. Fly the Banshee at a high level towards where the ramp meets the wall either on the left or right side. Then while not in turbo, gently glide towards it so that the wing will just barely scrape the wall. You will slide up to this flat surface and be able to walk around, although your Banshee flying is limited. You can walk behind the buildings and be able to see through walls. On the surface to the left, you can jump up to the next platform by using the Banshee as a boost. Put it against the wall and jump up off it. This allows you to get a good sniper location. This can also be used in System Link or Xbox Live.
Hidden message in Headlong
Select multi-player mode and choose the Headlong level. Go to the Red base. On some of the yellow walls, there is graffiti. Some it includes is a hippo head. This is a reference to former Bungie member Alex Seropian's new game company's (Wideload Games) logo.
Iron mode in High Charity
Play the mission on the legendary difficulty setting. After you cross the light bridges and fight through to the end of the level, you reach a room where Cortana says "Brood and Elite ships are engaging all around. The next lift will take you up to the conduit. Hurry". Go to the room, enter the lift, and look up while going up. Hold X so that you can grab the skull on the way up. The word "Iron" will appear when you get it.
Grab Oddball through ground in Lockout
When playing Oddball or Team Oddball, the ball is always in the middle of the field. You may get stuck under the ball when everyone on the other team is on the platform with the ball. This can change -- if you are under the ball when it is in its spawn location, jump up and hold X. You will grab it through solid ground.
Get on the roof in Lockout
Go to sniper rifle hill (where the sniper spawns). Turn around and start to go down the walkway. Look to your right and you will see a ledge. Get on the ledge and follow it around until you reach a corner. Start jumping and have your partner sword cancel at you. You will shoot up to the roof. Then, use the rocket launcher lunge trick to go up there with them.
Catch Skull in Metropolis
Play the level on the legendary difficulty setting. Immediately after you exit from the underground highway, you will reach a large open-air circular room with a handful of Jackal snipers and some Elites. The quickest way to get safely to the skull is to get the next checkpoint by jumping into the Warthog and letting the Marine drive you to the next area. Jump out of it, backtrack to the large room, and clear the area. You will see a large semi-circular beam going from one of the main platforms that goes from the ground up to the top of the two towers. Do a grenade jump at the bottom of this beam and walk all the way to the top. Jump over to the ledge of the left tower. Walk to the end of the ledge and you will find the Catch skull. This skull allows enemies to drop two plasma grenades, and all enemies will toss more grenades in general.
Soccer ball in Metropolis
In the Metropolis level, there is a giant soccer ball. In order to get it, first get the Sputnik mode skull. Then, get to the part where you have to help the Marines trapped in the building. Immediately after you drive out of the square room with the waterfalls, look straight out and up. There is a building with a big glass wall that is broken at the top. Grenade jump into the building then jump on busted beams. Get on top of the building. From there, go to the right and there should be another busted-up building with a giant soccer ball for your enjoyment.
Scarab gun in Metropolis
Use the following trick to get a Scarab gun on Metropolis. When you start the mission, kill the two starting Marines that you have, because they will eventually destroy the Banshees required later. Then, get in the Warthog and do not bother killing anything -- just drive straight past the Ghosts and Wraith tanks. When you get to the part where the Banshes fly overhead, kill everything there, including the Marines. Note: Kill everything except Banshees and one Ghost. Then, hijack the Ghost. Go into the tunnel and get a Banshee to follow you. Do not destroy it. Also, do not try to board it, because it will either throw you back out of the tunnel or will explode. Have it follow you to the part where you need to go through a tube. Once at the beginning of the tube, make sure you have the "Hold X to jack Banshee" icon on your screen. Melee the Banshee so that it will come towards you slight. Then, just as it reads "Loading...", hold X to hijack the Banshee. You have about two seconds before the Banshee disappears. Once you have hijacked the Banshee, fly it through the tube. This will take some effort, but can be done. Once you fly it through, fly up and northwest of your position. You will see a giant bridge-like structure very far away from your position. Once you have flown up to the top of it, there should be a small orange triangle with an exclamation mark on it, with white slashes around its border. There is also a plasma rifle floating above it. Although marked as a plasma rifle, it is really a Scarab rifle. It will produce shots like the Scarabs do, and will not run out of ammo or overheat. It is extremely powerful and takes pretty much anything out in one hit. Note: Do not shoot to close to yourself, otherwise you will blow yourself up.
Destroying the Scrab in Metropolis
First, follow the Marines out to the bridge (or walkway). Next, switch your battle rifle with the rocket launcher. It should be a few steps north of the sniper. Then, go next to the second rocket launcher. It will be a few steps ahead. You should see ammunition next to it. Instead of following the Marines, make a turn into the walkway in which there is only one way in and out. The Scarab should shortly arrive, but it will not see you. They will probably fire at the Marines. When they get far enough, there will be a huge entrance to fire a rocket at. If you followed the Marines, it will be harder to shoot the aliens on deck. Rapidly shoot rockets at the side entrance of the Scarab. When all forces on deck are defeated, join up with the Marines and jump onto the Scarab. No one will attack you if you try to hide on deck from the Elites.
Fly away in Metropolis
Go to Metropolis level (easier in co-op mode). Go in the middle of the bridge where the Banshees come from. From there, the Banshees should attack you. When this happens get in it (knock them out). Fly the Banshee down to where the Covenant ship is located. Have the other player take out the guns on it. Once the guns are destroyed, jump off the Banshee above the Covenant ship. Stay on it. It should take you to a flat surface that in the distance where there are buildings. You can walk through them.
