Yes you can.
Yes
Yes
Yes, you can play online coop with up to four players.
you cannot only on live or link
Call of duty 4 Call of duty world at war Halo 2
yes
its impossible to do it. to do it you would need two xbox 360s with xbox live its impossible
Get a live
No
If you are playing online there are 16. Xbox 360 live =16 PS3 online =16
(Invite 4 friends over or if you dont have four controllers use X-Box live or PSN.) ACTUALLY its only 2p offline u need xbox live or PSN for 4 players
no you idiot