Curate, connect, and discover
If you think about it, since the Final War is an alternate World War I, and because Russia never pulled out of conflict in ULTRAKILL's timeline, this could mean that the Russian Civil War likely lasted about a month, assuming the Guttermen were created around the time of the Russian Revolution.
I have no doubt that the surrendering Bolsheviks would eventually find themselves being used as fuel sources for their machines.
Yes, this includes Vladamir Lenin (Vladimir Ilyich Ulyanov), the founder and leader of the Bolsheviks, who later became the first head of the Soviet Union in our own universe.