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A murderous automaton encased in a toughened, bulky exoskeleton that maintains a cocky attitude, lethal efficiency, and super strength, all directed at newly programmed threats.
Uber Klaus is extremely tanky and will require a lot of ammo to take down unless you have a good weapon with 
Cryo Freeze or
Napalm Burst equipped and are constantly focusing the Shield Generators on its Shoulders, and then focusing the Power Core until
the Uber Klaus Core has been ejected from the mech. The Uber Klaus Core is significantly less health but can move slightly faster.
A shotgun with Dragon's Breath and the 
Dead Wire or Napalm Burst ammo mod equipped is probably
best for taking these enemies down, since you'll be applying both weaknesses at the same time, and the shotguns in Black Ops 6 are strong.
These periodic robot battalions known as Kommando Klaus, equipped with rocket boots, home in on perceived intruders with deadly self-destruct sequences engaged.
An Artificial Intelligence based on a snapshot of Samantha Maxis, obsessed with the idea of using Maxis' body to become Human.