385 Dark-Drinker with Weapons of Light and Tether.
It sounds simple, and it honestly is. Have 2 Titans run Weapons. one for the Canon-Users in Mid, and 1 to use Dark-Drinker against Aksis' Legs on Round 3.
I've been saying for over a week that Dark Drinker and Raze Lighter are the only exotics you need for the Raid. Now I can honestly say, JUST use Dark Drinker. It does more effective DPS, it does MORE DAMAGE than G-Horn and Sleeper Sim.
Datto has done the math, and can 110% verify the results.
At 384 Light, and being the highest-level member of my Raid-Team at the time, Dark Drinker did INSANE damage. I was the only person using it and we had him down to about 48% Health by DPS Round 2. That's 52% Health GONE in 2 rounds!
Get a Dark Drinker... And Deej? Bungie Devs? ... Leave. It. Alone.
Get your fingers OFF that Nerf Button, RIGHT NOW.
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Sounds like the first time I beat Aksis as a 367 in a fireteam of the same level. No high light weapons, disorganised scrambling for positions, sporadic dps, and one muppet going to the wrong platform after damage phase 2. We still beat it without 385 swords and the rest, and as randoms bodged together from the recruitment forums. Now I'm at 386 and run with teams of equal light and experience, it's done in no time at all with 2 clean platforms left at the end usually.