I beat this fight as an armorer, but it took about 4 tries before the one NPC that is killing them survived. I just stood around and watched really.
This is what I did pretty much. I was a r15 pugilist and got hammered by those critters. In the end I just stood there while the NPC killed everything. I got in a hit or two every once in a while, but never enough to get any hate. Honestly though, I wasn't too happy about having a battle where I didn't get to do anything heh. I felt more like a bystander rather than an adventurer.
Variety is the spice of life. Except on Dune, where it's worm poo.