Must have feature for all voice-enabled multiplayer games: auto mute. Halo has it!
 

Those playing Halo: Reach had better mind their mouth or the new system which we have dubbed “auto mute” will deal with them. This new technology from Bungie is on the lookout for players that are always being muted; and if they are constantly muted by other players again and again, the system in Reach will mute these offenders automatically.

The auto mute system warns the player being muted with notices and warnings prior to the player being permanently auto muted. If a player does get to the auto mute status, they are still able to play the game, but their smack talking mouth is muted for the enjoyment of other players.

http://www.fudzilla.com/games/games/...auto-mute-tech