on xbox 36o you can play split screen online
Yes. Four player split-screen local Multiplayer.
I think so.
Simply go on multiplayer then click local and finally click split screen.
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Call of Duty: Modern Warfare 3 for Wii doesn't have split screen because the Wii doesn't have enough RAM to handle split screen.
You can't. Try modding split screen/single player. If you meant modding for splits screen/single player (Like infinite ammo,jump hieght,disable AI spawn) use Modio.
You can play solo or split screen offline, and private/public xbox live matches online needless to say, it is maximum 2 players though.
Yes it does but i recommend using only one player to improve gaming
call of duty: mw4 isn't out yet, but you would definitely be able to support single player, if it ever comes out. it seems cod mw3 is the last one i think, but if you are talking about cod4: mw1 then you can definitely play singleplayer
Depends on what your wanting to do. Xbox live will allow you to search and play matches with people around the globe. Without xbox live you can still do split screen or lan matches. lan/system link
No, Call of Duty: Modern Warfare 3 for Wii is single player.