The strategy really is quite simple: we would stay at the entrance area, and split in two groups of three on each side. To the left we had the gaze guy, and to the right the "floater", for a lack of a better word. We would first clear all the adds except for one yellow vandal, and the floater would go to the back of the room to kill him, and shoot at the boss so that he faces him. At that time, the gaze guy shoots Golghoney in the back to take the gaze, while the 4 other ones down the front left bubble. Everyone but the gaze guy then meet in the puddle to DPS the boss, passing through the WoL first / shooting an arrow from a hunter on the way. The gaze guy calls out when his timer is at 3 seconds, at which point everyone bails out to their respective positions, and proceed to clear the adds again and start all of this all other again.
After the first rep you should take care of the thralls in the pit for maximum safety, with a void warlock super or some good nades, so as not to get bothered.
We were doing a bit more than 25% of his health with each rep, which kills him right after the first taken phase. And since everyone stays in cover while clearing out the adds, and we only stay very little time in the pit, the chances to die are very minimal, which keeps the tablet from building.