Me and my twin have had this problem ever since the start, it was small though... Only one map didn't load. Well, we didn't really mind, we were thinking, 'Eh it's just one map what's the big deal about that? Well 30 days later we got more problems with are maps. Jungle, Firing Range, and Nuketown wouldn't load... ( are favorite maps! ) Well, then we came to Gamestop about 10 days later and they wouldn't give us a new one because we baught it 40 days ago... So we just had to deal with it... Soon after more than half of are maps wouldn't load and we also had the first strike map pack! When we got the escalation map pack all the levels wouldn't load! And now all the maps won't load and only the zombies mode will work!
Thanks,
The Silent Killer