User blog comment:Armyman234/Treyarch hands over DLC production to Raven Software/@comment-202.128.81.21-20101211111930

maybe add a new enemy like an alien round similar to the hellhound and thief rounds and the alien can teleport you to the mothership and still a perk(one perk not all of them in your arsenal)and refund HALF of your points of said perk