I have complained numerous times about the kids on the game using absolutely horrid language that would have made me blush when I was in the service. They are also the ones running around screaming how their K/D's are amazing blah blah blah. Now where I work, we do have the ability to allow the children to play Black Ops 2 online (because it was a heavy request of the patients), but there are no mic's allowed and typically it is the patients (terminally ill and/or seriously challenged) that get bashed playing the game rather then them doing the bashing.
I think one thing I have learned at this point in the game is unless you are gaming with a party, MUTE ALL is your best friend. It just makes the game easier to manage and less of a headache in the long run in my humble opinion. Even when I am not gaming with my party and I tried to use tactics with whosoever was gaming with me, it was rather pointless as in objective based games they just run around trying to shoot everyone instead of capturing/defending the objectives and then in the actual kill based games, they are usually one man armies running around bullets flying willy nilly. Just finished up a game of Hardpoint a little while ago where I went 31/34 which for me was great considering I only have one hand fully functional, but to hear the idiots on the other side talking about me 'camping' in the Hardpoint and killing them as they ran in ... Well, mate, that is the POINT of the objective.