Pathfinder: Shadow of Chernobyl
The Miracle Machine
"The researchers out in Yantar have been having trouble conducting their experiments and retrieving materials ever since they arrived there. Wandering around the area are a strange group of people, some dressed as Pathfinders, others as soldiers and all seemingly devoid of intellect.
These creatures, husks as we've come to know them, seem to be the mindless shells of people who have been lost to the Zone. They don't seem to be able to speak or much understand us, but they sure know how to swing a sword."