I wonder what happens to these guys when Vlad gets a hold of them" My guess would be right back into the fight with orders that none of them survive. They don't want these guys telling other soldiers and the people back home the Ukrainians treat them well, that would encourage surrenders and defections. So, the simplest solution would be to recycle them into combat until none survive and they will probably kill any wounded that survive, Stalin would, and Vlad is using his playbook as much as he can get away with. Snatched off the streets of Russia and two days later thrown into the cauldron with no training and poor obsolete equipment while being half starved. Sounds like a plan alright, one for a military disaster rivaling 1905, 1917 or early 1941, only Stalin survived those fiascos, but he had half of Russian society and the army in the Gulag by then, Ukraine starved near to death and an iron grip on power.