Plasma blade and pilebunker left hand. Laser rifle and vertical missile launcher right side. Reverse joint feets.
I feel I did not "get" this boss. The only reason I was able to win was because pilebunker charged damage output was insane. Everything else felt like it was tickling the guy.
With the right generator and booster, I was able to hover under that bridge and never get hit by the lasers. It's now in my saved rotation for boss fights.