Command & Conquer 3 gameplay typically requires the player to construct a base and acquire resources, in order to fund the ongoing production of various types of forces with which to assault and conquer the opponent's base. All available structures of the faction chosen by the player are constructed on-site at so-called "construction yard" or "drone platform" buildings - which typically begin as large-sized vehicles or aircraft capable of deploying themselves into the aforementioned construction yards or drone platforms - or alternatively at the supporting "crane" and "foundry" structures.