Call of Duty Black Ops Cold War has turned into the trend of the gaming community since the launch of the Firebase Z map for its Zombies mode. Aside from the main Easter Egg, there are apparently some side-easter-eggs as well in the map, including the Firebase Z head mystery, which we are going to
Firebase
Call of Duty Black Ops Cold War officially received a new update earlier yesterday, adding the Firebase Z map as a new Zombies location to the game, and giving players one day to learn the map and explore its mysteries before jumping into the Easter Egg Quests. Right now, you can unlock the RAI K-84