This type of DLC (maps) just **** us up. It cuts by half or even more the amount of games you can join. It's being REALLY difficult to find games with DLC activated.
It might not affect you guys on USA playing on Xbox Live, where you have 20k+ players. However we from South America suffer a lot having about 1000 players on PC, with about 500 only with the DLC.
Not mentioning the "files different from server" glitch.
Activision, IW, Treyarch, whatever, JUST STOP WITH DLCs THAT SEPARATE THE PLAYERS