Unintended bannings occurring from Halo 4 (issue rectified)

http://halo.bungie.org/news.html?item=38304 I've been reading about these issues but the facts were sketchy. HBO is now informing people.

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December 17, 2012 Link to this post

Crimson DLC Woes Continue
In the last couple of days, there have been a rash of reports of people being permabanned from Halo 4 Matchmaking after playing the Crimson DLC. (Originally, it looked like it was people who'd downloaded the maps as part of the 'Pay and Play' promotion... but I've seen a number of reports of folks with the Limited Edition having this happen, too.) A post last night by the MM Systems Team on the Halo Waypoint forums says that if it's happening, it's a mistake - and they're investigating. Don't panic - if you were banned, and you don't think you did anything wrong, hold tight, they're working on it. (Louis Wu 12:25:08 UTC)