Dynamite, rockets, grenades, pretty much anything that goes boom. Just wait, you get to deal with more fun super soldiers later on
. Just plaster the bastard with rockets, and if you run out of explosives, use the venom (I think you have that at that point? I can't really remember..) I think I ended up hiding in the little booth-type thing, and dodging back and forth, throwing explosives in its general direction.