ok, from what i can gather, only shadowrun and halo 2 can do this. is there any way to play call of duty 4 across platforms?
I doubt it. I think gears of war may be able to do this too. Could be wrong though. I think itd have to be strictly a pc/360 game to have this option. And you better believe in a shooter, a skilled mouse/keyboard user would just destroy a control pad user. Id imagine theyd make the pc player use a controller though.