How to do the secret Firebase Z map of Zombies Cold War

The latest Call of Duty: Black Ops Cold War Zombies map was released on February 4th. Here’s how to reach and finish Firebase Z’s Easter Egg round.

As always, the new maps of the Zombies mode of the Black Ops opuses are particularly awaited. For scenery, new weapons and new features of course, but also for secrets and easter eggs.

Treyarch built the reputation of its Zombies mode around the hidden stories surrounding it. Whether it’s a whole series of events to track across multiple maps, or just a fleeting wink, players love hunting down these easter eggs.

The February 4 patch on Cold War brought a new map to Zombies mode: Firebase Z. Obviously, the map has a secret and easter eggs, which are waiting for you!

How to complete Firebase Z easter egg

As the Firebase Z easter egg hits the game on February 5 at 6 p.m., here are the steps you can take to prepare for this new Zombies event.

1. Teleport to the Firebase. You will then see 3 unlocked bridges which will take you to the Ether Reactors
2. Activate the power, then the Ether Reactors
   • The first is in the control center
   • the second is at the military command
   • the third is in the data center
3. Use the Pack-A-Punch machine in Ravenov to upgrade your weapon
4. Get the RAI K-84 Wonder, Firebase Z’s special weapon
   • You can get it through the Mystery Box, but you’ll need luck
   • You can use the different parts of the blueprint to build the weapon in the Weapons Lab
5. If you choose to craft the weapon, find all 3 blueprint parts
   • The first is at the Burnt Defense.
   • Use the Zombie Eye to access the Weapons Lab computer, then check the open lockers to retrieve the second part.
   • The 3rd part is only available from level 15. You will find it by killing a Crippler
   • Take all three parts to the Weapons Lab to craft it
6. Talk to Ravenov at the starting location
7. Talk to Dr. Peck in mission control
8. Return to the village and talk to Ravenov again who will give you a magnetic card
9. You can open 3 lockers with this card: Engineering, Equipment Warehouse, and Colonel’s Office
10. In each locker you will find a vial to build the truth serum in the field hospital
11. Collect the truth serum once built and place it in the CPO area at the level of the ventilation hatch
12. Go to the data center to retrieve necessary information
13. Interact with the main device and collect essence capture devices to capture weak enemies alive
14. You will need to capture Mimics that spawn specifically for this stage (1 per round)
15. Once the 3 good memories have been obtained, recover the floppy disk that comes out of the server at the data center
16. Put it down at the Planning Desks in the Quantum Computer to open the dome
17. Return to Dr. Peck who will tell you to collect 3 Ether Tanks
18. Already collect the ether gauge that is to the left of Peck’s vault
    1. The code is given to you by Ravenov at the end of Peck’s dialogue
19. You also need the shovel which is at the brazier fortification in the bunker
20. Detect the locations of each tank thanks to the latter
    1. In one of the trenches of the jungle fortification
    2. In the open area
    3. Outside the field hospital
21. Refill the 3 empty tanks to the three vats that turned on the power
22. Go to the planning offices, interact with the pc and realign the satellite dish
23. Interact with the CPO dome terminal
24. You are teleported to the village to face the final boss

A Zombies card without a Pack-A-Punch is not a real Zombies card!

Discover a good explanatory video with interesting details on how to achieve this secret which is already different from that of Die Maschine by Kenshin9977.