No, you may not play Split Screen!
No. None of the Modern Warfare series have been 2 player online (aka. online split screen).
No because they are diffrent files
Yes, online and offline.
yes in local games and spec ops not online
Sadly... no. You can play Special Ops multiplayer, Xbox Live and split screen. And you can play Xbox Live, Xbox Live but not split screen
Yes, a person can be in split screen.
No, this hasn't been added they are still using the one console one account rule. I think there should be split screen but they do this for money purposes
yea if you are playng in two player mode or xbox live. Does that help?
There is no Modern Warfare for the original Xbox.
yes
^^yes 6you can rank up off line i am 4th prestige on split screen and 5th on xbox live, but your unlocks do not carry over from xbox live you have to do them seperatly edit: i believe you can check the "xbox live unlocks" toggle to on, however this only pulls your live unlocks into the split screen, and any xp gained/challenges unlocked/etc wont count towards your live account. (im 85% on this).
yes you just need to go to the settings (i think second from top), game settings and turn on using your live unlocks