WhiteDwarf: Do a quick inventory check to see all your options.

You've only got surgical tools in here. Well, surgical tools and your hand-to-hand prowess. Martial arts, being an art of exploiting openings and ruthlessly disabling a foe, isn't honorable and you didn't like what you did with Chaplain. But fighting a giant robot is sort of a middle-ground where it's okay to do basically any tactic. Everyone knows: it's not dishonorable if it's against a giant mecha. That's just how it is.

Still, you need a little more than that to take this down.

RedGiant: upend the plasteel tables and use as a shield