>>62706008eh, I didn't have the exact same experience since I did him on NG+ for RPs sake (NG was mainly being a good dog to Walter), but like 80% of my builds can clear that mission super easy, I think the only ones that'd struggle is a dedicated artillery platform on a wheelchair and my energy build using pulse lasers and auroras due to ammo
actually want to try it on my dual pistol, dagger, laser orbit RJ now that thing won me some unlikely battles (like Snailteus and Ayre) through sheer unrelenting aggression