Oh wow, they're banning people for downloading it?
I read a couple of pages in the Halo 4 official ban thread and appareantly people get banned for playing the DLC now, as already stated by bobs. A lot of those downloaded it today or yesterday. Some of those weren't even playing matchmaking, but customs and/or forging on those maps and got banned.
I feel very sorry for those guys.
And I think it's not 343i fault this time, except that the automated system is banning people. Blame Microsoft for telling us, that it was planed to be free 1st and a day later it is only 10 days free. Now they can't determine, who bought the map pack legally and who doesn't. That's just ridiculous...
Game ban, live ban, xbox ban or what?
Perma ban from Halo 4 matchmaking and Spartan Ops.