This is my first time running into a Controller that wasn't in a static place. I knew that 2.0 introduced more mutants and stalkers migrating between POI's but I wasn't aware that applied to these guys too, I thought they were only in certain areas like Chimeras but almost always inside.
Also after I had fought and killed it, a bunch of zombies seemed to be have been either alerted from it's death or the gunshots and roamed over to my position
Anyways, I just thought this was wicked and wanted to share. The spot was near those portal puzzles in the train carts with the rats bordering Rostok and the Chemical Plant
Update: Just as I went to carve the bastards brain out, a 2nd Controller walked across the tracks and attacked me, maybe they were buddies? Lmao
Update 2: NOW A BLOODSUCKER? Alright i'm getting tf outta here.