Every time I beat the campaign mission where you have to obtain the celerium drive on Black Ops 2, my xbox goes to black screen, and has to be shut off to work again. I'm wondering if anyone else is having similar issues, or problems like this with their campaign mode. I have tried to contact Activison since the game came out, but with no luck. If anyone has any info on how to deal with this I would greatly appreciate it. Also, I realize there could be an issue with my disc or it may be faulty, but it is brand new, and I don't think that is the issue.