Fast Solo Imago Loop Farm - 320LL Echo Chamber

Select the Echo Chamber strike on Venus and put it to 320LL difficulty. Requires a Skeleton Key which can also be farmed via this method. I used directional control as the jump, sleeper with Y1 Lucky Raspberry for 15 shots and Lockdown for longer invis. This can also be done on a Titan with Twilight Garrison. The key part is crouching behind the pillar that I am behind, the small one as you enter the room. Do not peak any further than I did or the boss will go immune.