
As it stands, the majority of the modes in "Call of Duty: Modern Warfare 2" multiplayer do not support Xbox Live's party chat option. In fact, the only ones that do are Free-For-All, No Party Team Deathmatch, Ground War and two of the 3rd person modes. If you're only interested in chatting with friends while playing the other modes, you'll have to manually mute everyone else in your game (including any newcomers), or do this:








