The new Reckoning map for BO6 Zombies offers a new questline. Apart from that, there are secrets hidden within some of the rooms on the map. In one of the rooms, there is an incomplete Franken Klaus robot hanging nearby. To complete and activate the robot, you have to follow a series of steps, starting with locating the missing body parts. This guide will cover where to locate all of Klaus’ arms and legs in BO6 Zombies.
How to Build Franken Klaus BO6 Zombies
The broken Franken Klaus is located in T2 Android Assembly, and you might also encounter some of the missing parts for the bot around the vicinity.
Klaus Leg Locations

Starting with the legs, there are two main locations to check to get them, but they also spawn in other locations around the map. The first area to check is behind the cracked mirror within the T2 Assembly room. Within this room, walk up to the corner between north and northwest. Keep checking your right side to find a broken mirror on the floor. Check behind it to find the first leg.

The next location to check is just outside the room where Klaus’ body is hanging. Exit the room with the body by heading northeast and immediately look to your left. There will be a broken door on the floor, and right beside it is where the second leg might spawn.
Klaus Arm Locations

For the arms, you don’t have to go searching for them anywhere, as they drop by defeating Kommando Klaus. These bots spawn when a special round is active, and these are random occurrences. The key to getting the arm drop is to kill them before they detonate. When the Kommando Klaus gets near you, they will automatically explode and won’t drop anything. Also, you get one arm per round, and the chance drop is random. Try playing as many rounds as possible to get both arms.
Assembling and Activating Franken Klaus

Head southwest within the T2 Android Assembly to find the body of Franken Klaus. Attach the arms and legs by interacting with the bot, after which comes the hard part. You need to locate and lure an Uber Klaus towards this location and have it use its electric attack around Franken Klaus to activate it.
Uber Klaus is a random spawn and may appear in the later rounds. Once you find it, bring it over and have it use its electric attack around Franken Klaus. It works if you stand around the bot and wait for Uber Klaus to attack you, ultimately activating it.
Completing the Mission
Next, follow Franken Klaus around and have it hack several terminals. After that, head over to the T1 Quantum Computing Core to find a metal container holding a purple brain. Break the container with a melee weapon and the Melee Macchiato perk, collect the brain, then deliver it to the machine located beside Franken Klaus.
Be sure your team has your back while you transport the brain, as you will be vulnerable and at high risk of dropping it if you are attacked. This will conclude Franken Klaus’ secret mission, but there is plenty more to do around the new BO6 Zombies Reckoning map.