This zone contains a crucial main quest beat, where Klaus assists in powering a scanning system which produces a quest item. During bo7 bot lobbies, the Uber Klaus Round 8 stabilizer chips step starts the quest chain. The chip then links to a Klaus Escort that finishes inside the Cosmodrome.

Trigger Uber Klaus at the beginning of the quest

Collect the stabilizer chip after the fight has ended

Once you have freed Klaus, guide him to the Cosmodrome.

Position Klaus at Support Systems node

The Aether Barrel Step with Klaus in Zarya is a timed hold that occurs near the scanning machine. If you survive the pressure, the barrel will spawn after the scan has completed.

mmoset CoD Bo7 Zarya Cosmdrome Guide: Necrofluid Gauntlet Scan and Why the Machine Matters

The Cosmodrome hardware also has a connection to the wonder-weapons chain. This area is still important after the barrel stage. During the BO7 progression, Necrofluid Gauntlet Zarya Cosmodrome Step is where the player confirms their objective before moving on.

Prepare your armor to reach the scan area

Before starting the timer, clear the zone.

Keep one lane of escape open near the ramp

Leave the yard after you have finished the scan

The scan step rewards a calm pace, and using safe covers. This is because waves tend to stack up when the machine is running.

CoD Bo7 Zarya Cosmodrome guide

Yuri's Lab, located in the Cosmodrome complex, is a puzzle-and-survival room that is used during the main story quest. Therefore, entering the lab without preparation can be risky. Yuri's Lab, located in Zarya Cosmodrome's interior, is a good place to start. It becomes important after the ingredients are prepared.

You must have all the ingredients you need before starting the lab phase

The board will appear when you activate the tray.

It is important to read the symbol clues slowly.

One strong weapon is enough for the holdout

The Pigpen CoDe symbol board in Yuri Lab is used to set the interaction order for objects. These must be completed in the correct order in order to progress in the quest.

The three colored keys and the blood pour holdout in CoD Bo7 Zarya Cosmodrome guide

After the CoDe, the lab sequence becomes a survival holdout, which forces the player into a tight battle with reduced safety. Then, the quest flow shifts to a map-wide hunt for three colored key. The holdout is sometimes referred to as Blood pour in Yuri Lab. 75 health because the health limit makes positioning difficult and armor timing harsh.

Stock up on armor plates before you start your holdout

Hold the corner that has an exit line.

Use field upgrades during crowd surges

The lab should be closed after the event has concluded

The key hunt happens all over the island. Search intent is often shown as Bruin Key spawn near Crashed Rocket Zarya. Nightbird Key locati0n BO7 Zombies Ashes Map and Terrapin Location BO7 Zombies Ashes Map are the two other key locations that appear in most guides.