Like Battlefield, but with more teamwork/strategy involved, and concentrated fighting areas.
So basically, a Battlefield game, but where no one spawns behind and knifes you in the back.
But seriously,
I think multi-player would be better on the 360, (even though it would be a 16v16 instead of 32v32) at least if you using teamwork, because then everyone has a mic and it would be easier to coor...