A few weeks ago, I sent in my Xbox to Microsoft due to the dreaded RROD. It returned, and functioned well. They sent back a one month XBL card with it, too, and I finally used it. But when I log into it and go into the matchmaking lobby, it says I don't have any of the maps required to play on any playlist? It works fine on my other account.
This happened to my little brother when he got his account, all you have to do is download the maps on your other account. Don't worry, they should be free because they're already on the Xbox.
Thanks for the reply. I did that. Downloaded Cold Storage, Heroic Map Pack, and Legendary Map Pack. Same problem. If it means anything, Cold Storage took 5 or so minutes to download, the Heroic and Legendary Map Packs took about 2 minutes, together.
Never. The whole time my Xbox was at Microsoft, my account was inactive. :|. I downloaded them at my house.