Argies are great for attack from above to easly kill rexs but remember to still pump health becuase if you get stuck under your dead

When battling one of these try to break it's turn radius therefore they won't be able to hit you

If you ever encounter one in the wild, and you are in an early stage in the game, run the opposite direction. Also try not to agrovate it unless you are up to the KO/Fight.
Good luck if you encounter it!

Since they are scavengers you can just kill a large Dino and every Argie in the area will come for the corpse then just surprise tranq them.