That is a good question and what I think it is for is when you are using a sniper you don't waste ammo shooting a team mate
No there can not be 4 players on Call of Duty Black Ops Zombies on PS3 offline.
Up to 4 players can play simultaneously in call of duty black ops multiplayer.
yes
No it's only 2 players unless you do a local match
call of duty black ops is the worst game in history and is 0 players
Black Ops has Co-Op play
4
everything its for mature players only.
yes, yes you can.
u dont
Yes
Call of Duty Black Ops is four player split-screen, and 2 can play split-screen online.