Can I set up my son's xbox360 to where he can only chat with friends when playing online? When he currently plays MW2 and he is in game chat, he manually goes down the list and mutes all non friends. I know you can creat a party chat with only your friends, but some game modes can only be played with in game chat. If there's a way he can simplify it and not have to mute people each match, I would appreciate the advice. Thanks