Here is a good strategy that I have designed which si think will work very well, this is a variation of the one orb strat and will get you the win in challenge mode. Before we get into this I just want to clarify that to beat the challenge to only actually requirement is that each player has to take the gaze at least once during each rotation. Also when speaking of orbs Front left is L1 with middle left being L2 and back left being L3 with the same order for the right R1, R2 and R3. 1. clear adds as normal then set up to take the first orb down. 2. shoot R1 down and first gaze holder takes gaze, 4 people jump down to do DPs while the 2nd gaze holder gets ready. Take note a 5th can DPS the first rotation as well if the gaze holder can count down the time so that the second gaze holder knows when to get out at take the gaze. 3. At this point the pool will be gone and the 2nd gaze holder has the gaze. You should all jump out of the pit and then the 3rd then 4th should take the gaze. 4. at this point all 5 players should meet up over behind L1, The 5th gaze holder will take gaze behind standing by R3. 5. Now the 5 others with out gaze will start shooting down L1 and then the 6th gaze holder will take gaze while everyone else jumps in the pool to dps in till the timer is up. My team currently using 1 orb strat often kills him in 2 rotation so doing this I can see it being very possible to kill him in the first rotation as long as every one has sniper ammo and make sure everyone pops a synth in between the first and second pool during the rotation. Obviously the basic 1 orb strat of using one orb then passing gaze killing adds again then repeat will also work just fine.