Build
Klaus
Turn on the Power.
Collect Klaus's parts:
- Hands. Use Brain Rot on a zombie near Room 305 to have it break down the barriers, then grab the Hands from the corpse on the bed.
- Battery. Drops from the first Krasny Soldat killed.
Place both parts on Klaus in the Safehouse.
Step 1
Klaus Upgrades & the CRBR-S Blazer
Klaus First Upgrade:
- Dig up a Microwave Dish at the debris piles in the Death Strip.
- Place the Dish in the upgrade station in the Garment Factory.
- Call in Klaus and have him get kills until the screen on the upgrade station turns green.
- Command Klaus to get into the upgrade station and protect him. once he comes back out, he'll be upgraded.
Klaus Second Upgrade:
- Direct Klaus to a locker in the Switch Control Room and grab the Blacklight inside.
- Find 2 boxes that, under blacklight, show Klaus's face on them. Have Klaus open them and grab the Floppy Disks. Possible locations:
- 5th Floor Apartments
- Blasted Suite
- Ghost Station
- Hotel Lounge
- Maintenance Tunnel
- West Berlin Street
- Have Klaus get into the upgrade station and protect him two more times.
CRBR-S:
- Direct Klaus to the locker in the Switch Control Room and grab the Blacklight inside.
- There are 3 areas with a 2-digit number and a circled number indicating the order, visible only under Blacklight:
- Garment Factory
- Service Passage
- Grocery Store
- Once you have all 6 digits and their order, enter them into the safe in Hotel Room 305. The CRBR-S will be inside.
Step 2
Sewer Access Wall
Call in Klaus and direct him to a wall in Sewer Access to make him punch it open.
Shoot the wall open with the CRBR-S Blazer to melt the wall.
Step 3
Essence Canisters
A red bubble around a pedestal in the Lab will disappear after you end a round.
Grab the 3 Essence Canisters and bring them to the 3 Essence Harvesters around the map. There are 7 possible Harvester locations:
- Alley
- Destroyed Penthouse
- East Berlin Streets
- Ghost Station
- Korber Rooftop
- Sewer Access
- West Berlin Street
Step 4
Charging the Harvesters
Once all 3 Canisters are placed in the Harvesters, shoot the cabinet next to the pedestal with the CRBR-S and grab Endstation Lures.
Place each lure on or near a Harvester to spawn Tempests. Kill Tempests near the Harvester to collect souls and charge it.
Once a Harvester is fully charged, pick it back up. this will slow your movement and spawn enemies in your path. Bring it back to the pedestal in the Lab.
Repeat this for the other 2 (3 total) Harvesters.
Step 5
Train, Keycard & Bomb
Switch the lever in the Switch Control Room to call in a train.
Quickly command Klaus to stand on the Eastern tracks across from Mule Kick. he'll hold out his hands and stop the train.
While the train is stopped, quickly board it and grab a Keycard and a Bomb.
Place the Bomb on the Lab pedestal.
Step 6
Hacker Helm
Break 3 items around the map to get parts:
- Antenna. Apartment Rooftop, shoot the antennae tower.
- Electronic Boards. Ghost Station, shoot the green box above one of the ticket booths.
- Transistor. Electronics Store, shoot one of three cassette players.
Craft the Hacker Helm on Klaus while he's sitting down.
Final Steps
Uranium & the Boss Fight
Use the Requiem Terminal in the Safe House until it starts a countdown.
After the countdown, an Apex Megaton and two Apex Mimics spawn from a beam at Checkpoint Charlie.
After defeating the two Apex Megaton splitters, they drop two pieces of Uranium. You'll have 5 minutes to complete the rest of this step.
Bring each chunk of Uranium, one at a time, to a build table at Military Tent or West Berlin Street.
Place each piece on each side of the zipline from Korber Rooftop to Destroyed Penthouse. they'll collide and drop an Uncorrupted Uranium Rock.
Bring the Uncorrupted Uranium Rock to the pedestal in the Lab.
Repeat this step one more time. this time the beam launches onto the Apartment Rooftop instead.
After placing the second Uncorrupted Uranium Rock, the boss fight begins.
General Tips
The boss fight has 5 phases. Simply shoot Valentina to damage her. she can raise a blue shield, but it breaks easily. The CRBR-S is excellent for damage. She can also raise zombies to heal herself. kill any zombies she raises before she can absorb them. 4 of the 5 phases include a wipe phase, signaled when Valentina holds up and charges a blue orb. get to the safe location listed for that phase when this happens.
Location: Secret Lab.
Wipe Phase Safe Location: Hide behind the walls beneath the stairs.
Location: East Berlin Streets.
Wipe Phase Safe Location: Lay behind the cars.
Location: Destroyed Penthouse.
Wipe Phase Safe Location: Hide inside the building.
After the Boss Fight
Interact with Valentina to start a cutscene. Afterward, protect Klaus as he walks into the portal to complete the Main Quest.