Once you figure out the mechanics, it's actually quite fun and fairly simple. There are "purplish" Goblins called Qodrons Eye and if you kill one you get a 30 second buff called jail breaker which increases damage you do to the containment shields. Make one guardian responsible for killing the eyes and supporting with mobs while the other two focus on Qodron and help calling out where the eyes are. Stayed grouped together so the enemies converge on you, once you get "gazed" have the guy with jailbreaker bust everyone out, best to have a "super good advice" since hitting the containment shields won't cost you ammo. I found the area off to the right near a door that no enemies spawn from in the tunnels provides great cover. Just be careful, you can get teleported. Work together, call out the eyes, communicate, succeed.