audio team chat

am I being really stupid? I am muting team chatter on the Audio settings page within the game but still hearing off sounds/children yelling and general team noise - do I have to disable audio on the Xbox as well in order to lose the background noise if not playing super-collaboratively

Team chatter is the Spartans calling out in game, I believe. In beginning of each game if you hold back button and hit x it will mute all. If I understood your problem correctly

It would be nice if we could communicate with quick options, as it has in BF!