I've been looking for "heavy" Русская музыка, но the heaviest I can find is Catharsis Catharsis - "Hold Fast" - YouTube

I am interested in something more along the lines of Demon Hunter - Undying - YouTube or As I Lay Dying: Nothing Left - YouTube

I have yet to find anything even close, but if you have any suggestions to point me in the right direction, I would greatly appreciate it