Tried doing this on heroic several times but with constant bugs with reviving and enemies being trapped in the walls its damn near impossible to complete. There are far too many waves of bullet sponges and dogs that take 5 magazines to kill. Then when you get to the ladder that goes to the room before the boss there is a mini gun guy that kills you before you reach the bottom of the ladder and your team wipes just to start all over again. Fix this!!!


