I found that if you have pacify lvl 66 then its a piece of cake as long as you are carefull be prepared in case you get resist of paci and fade oh and these enemies gate so make sure your team stuns to prevent healers and gaters.I found pulling the furious sentry room first and clearing it to work best because then you don't have to worry about adds as much then once you do garden don't worry about the defunct sentries as they only got like 4-5k hp and die really and i mean REALLY fast.