NoDice said:
halo
Make that Halo 3. Every XBOX should come with at least one of the Halo games, it’s practically the Super Mario of Microsoft consoles. If you’re in it for the multiplayer aspect, Halo 1 and Halo 3 are the best but try not to get addicted to playing online, the communities are quite terrible.
If you’re computer couldn’t play CoD4 now’s a great time to get it and the online is pretty good too from what I hear.