I got Black Ops a few months ago from my uncle and it was in perfect condition. Since I played it and haven't taken it out of the Xbox 360 every map would work but, last night, I tried to play Acsension split screen and it loaded for about a minute and froze on the loading screen but the xbox itself didn't froze.
The disc now has a perfect ring along the edge. I have tried deleting and reinstalling the map pack and it still won't work. How can I fix this?
Also, I do not have Xbox live.