Heavy Zombies are an enemy introduced in Call of Duty: Black Ops Cold War in the Zombies map Die Maschine. They function similarly to normal Zombies, however stronger due to the addition of armor which renders a portion of damage it is destroyed (This effect can be combated by using the Cavalry Lancer Barrel). The flags on their armor indicate they are of the Soviet Union. Heavy Zombies begin to spawn at round 20 and continue to do so after in the Zombies map Die Maschine. In Firebase Z, they spawn in at round 30 and onwards, as well as occasionally spawning in during assault rounds. They also begin spawning in Outbreak around difficulty 5.