I never play Multiplayer online. EVER. I do not mind playing with my friends on co-op, as I get people I like (although even Halo have ditched this).
My experience with MP has always been annoying. The game starts and you get abuse for being a newb etc. then you win a few games then you get abuse for that, then you get good and you get even more abuse. I got so many reports for behavior (all fake) IE verbal abuse, when I never even had a mike for example, Over aggressive, again no mike and it was on COD? really?? Just sore losers giving bad feedback on Xbox live.
I am a married man I get enough abuse, for not putting the garbage out without this . Why volunteer to put up with whining little kids (regardless of their actual age) Single player is all that interests me unless they have CO-OP at home which will not happen.
Trouble is People like MS push for online, to get us to pay for gold membership etc. At the expense of single player and old fashioned split screen co-op.