New Call of Duty: Warzone Teases Have Zombies Players Excited Call of Duty: Black Ops Cold War, new in-game of Duty: Warzone teasers began, and they appear to be teasing an event involving both zombies and nukes. A part of these teasers was a Zombie Trials Machine that randomly populated inside the Hospital. And now, another has popped up in Stadium, though right now both are only appearing in Rumble. As you may know, the machines don't do anything, but, on the surface level, they appear to be teasing that zombies are coming to Warzone. That said, because they are only appearing in Rumble,