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 just finished that mission, didn't have any freezing issues myself. I also haven't had any freezing issues since I've been playing for hours on this game. If you don't have the video game installed on your Hard Drive, give that a try.