"As any CoD4 player worth his or her weight in bullets knows, the map-pack was released last week. With it came several new playlists that allowed owners of the pack to play the new maps exclusively without bothering with the old maps. That was great and welcome. Unfortunately, now, Infinity Ward has decided to remove the new playlists, adding the new maps to the original playlist rotation.
This means that if you want to play the new maps then you're going to have to get lucky and hope it loads up on your next round. This is a lame decision on IW's part." writes Chris Jensen.