Muted

I'm a chronic muter of inconsiderate people.

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Loud music - MUTE. Inane chatter aimed at annoying - MUTE. Cussing tirade - MUTE. Pesky voice with goofy questions - MUTE. Racial slurs - MUTE. Hate speech - MUTE. Yeah....

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Like Zombie said, while in the lobby it's the right time to go through the server list.

If your on ghost, get into a game press start then go to the 'mute players' option, in mute all, then for good measure go to 'mute groups' then select turn mute off.

im havinng a problem with the self mute for gears of war 3 ive been muted for some weeks now and cannot un mute myself. this happened when i muted everyone i the game i wasnt aware that it would mute me as well. so now im am muted for all the other games
that i play too.

Yeah the only thing you can really do is block, report and mute the users bothering your son. If your son can't stop playing with the friend they somehow always get through, then set up a private party where only your sons friends can join.

Muting the players will be the best thing as they cannot talk to your son after this, even if they join the game, they'll be muted, but make sure to mute them by their profiles and not in the game, as muting them in game will only mute them in that specific
game, but muting by the profile, you will mute them in party's and any game.

Hey guys! We are aware of this issue and are working to resolve it. Thank you for your patience.