I did it earlier. The void psion shields stuck. We had 2 self Rez n a void bow. Angel of light and shotgun from above. We were all mid 270 light so we had to focus heavy on adds. For the first part with bro 1 it was easy to have 2 stand on the light polls as you first enter the room n the 3rd kite him around. Only have to kill with a shotty. Bring special ammo synth. Specialist is on. That's all i can think of for tips. Sucks when you beat it. Won't get the fun till reset