MP needs an adult mode before it should even be considered as part of the game. I tried it once, before the match some kid started squealing through my TV(no xbox mic), turned it off and never looked back.(I also happened to finish Mass Effect 3 around the same time, so obviously ending turned me off at same time)
Fix that problem BioWare and you can have MP in my SP game.
Also for the record, this thread is confusing, TC seems to have taking the gimmick of a hardcore competitive gamer, but Mass Effect 3 MP, is not a competitive game as you're still only playing against AI. AI that is no more difficult than SP AI. The only difference is, TC can get carried in MP but not in SP.