I purchase the new Rezurrection map pack for Call Of Duty: Black Ops, and only two out of the five maps work. The other three freeze the game before loading, prompt me to clean the disc, or say the country on the content is wrong. The included Moon theme did not work either. I called Xbox LIVE support, and they did not know what to do. I assumed it was just that game or that DLC, so I downloaded an indie game called Fortress Craft, and it came to the main menu before it went black and took me to my games library. I need help because I don't know what to and a new Xbox 360/hard drive is out of the question.