User blog comment:Damac1214/Mob of the Dead Achievements Leaked/@comment-4921618-20130412180323/@comment-4921618-20130412182725

It would be more productive, yes. But that just isn't the way they are doing it. They could be testing it on PS3 but the last time the achievements were leaked for Die Rise on PS3 was after the DLC was already released for Xbox.