We're excited to announce that we've fully migrated the Xbox Forums to their new home, here on the Microsoft Community forums!
As of today, going to forums.xbox.com will redirect you here to the Xbox area of the Community forums. We've moved all of your existing threads over so you can continue and start conversations with the new forums experience.
We sincerely appreciate the feedback you have provided over this transition and can't wait for you to check out the new Xbox Forums!
I bougt the last dlc pack a while back, and suffered the same thing trying to get a game on zombies. Annoying is to put it mildly. Sometimes its fine, sometimes its almost impossible. I have no idea what the reasons for it are though?