Special-Ops (2 players max) and Multiplayer (Up to 18 players in a single lobby)
No
Yes
Yes, there is online multiplayer on Call of Duty 4: Modern Warfare.
there is none
Actually, you now can. you can go into settings an change it to online mode. where you an the other person on splitscreen will use the ranks and classes from you onlline game.
no but your just going to have to look on modern warfare 2 online
Jtags
You cant!!!!!!!!!!!
Call of Duty World at War, Modern Warfare, Modern Warfare 2, Black Ops, and Modern Warfare 3 all have online multiplayer.
No because they are both different formats
Yes, it is the beta for modern warfare 3 online, only available on PSN and MAC
pretty much except the controls are a little different and online is not as good on ps3 :P