halo 2?????

wat in the hell is wrong with halo it wont let me play any game except double game. :evil: :evil: :evil: :evil: anyone have a clue wats going on!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! :evil: :evil: :evil:
Are you playing on XboxLive? If so then it might be you haven't downloaded the new maps? Or maybe your disc is scratched or something.