Talk:Damage 2.0/@comment-80.47.230.118-20150401165201/@comment-25845919-20150401173622

All Grineer units have both flesh and armor (armor protects flash, obviously). Armor reduces damage incoming to health, but damage types like corrosion or radiation ignore that resistance. Using radiation against bombard will have more impact than viral, since viral gets blocked and radiation... Still blocked, but not as good. Corrosion proc is capable of permanently reducing enemy armor, nihilating their armor-resistances and increasing health's weaknesses with each proc.

And Grineer are the only faction in game that uses armor. Corpus prefer shields and infested... Flesh only, obviously.