Nobody knows why, but if you shoot all the arms off the mannequins in the Nuketown map in Call of Duty: Black Ops 3, they become very upset. Enraged, you might say. And then, when you're not looking, you can be sure they are moving in on your back, with vengeance in their mass produced eyes. Don't believe us? Check out this video courtesy of Youtube channel TheHiddenBlade01.