warhawk is absolutely awesome for this. You can have 4 players online split screen vs other players. Got one system? One game? 4 controllers? 3 friends? play on the same TV with the same system with maps upto 32 players. Highly recommend.
A little about the game, multiplayer only! no story mode. You can have 4 players on one system for multiplayer or play online (with upto 4) with lots of other players. Ground unit just as good as flying unit. Can fly like jet, or hover mode with just a touch of a button. The flying is hard to get used to but with practice not to bad.