This mission is the third of the three generally considered hardest to SASO, due to the very limited number of ways to kill both sisters and the non-obviousness of the available methods. It's mostly not possible to extract the Constant SASO with no KOs, as you can only approach him while not trespassing and he never willingly goes anywhere that's not trespassing SO. But there are some ways that work: Taking advantage of how the first NPC to see a thrown object will "claim" investigating it. • Extracting Constant Suit Only No KO - Isle... Taking advantage of liminal spaces. • The Ark Society - SASO master no-KOs no-lo... Excessive luring. • The Ark Society SA SO No KO with Constant ... And crazier things. • Video In this run we lure Sophia with the clock radio, Zoe by lighting the money pit (without taking advantage of the possible bug about the torch no longer being illegal to pick up and toss SO), and lure the Constant with the "thrown object claiming" method. If you want to see it done with the torch-possible-bug and liminal spaces, see • The Ark Society - SASO master no-KOs no-lo... . 00:00 - Start by waiting for some guards to be about to move. 03:38 - The one guard walking can spot you while he's walking, and the timing here aligns with his loop. 03:45 - Coming out the window, watch for that tech. Then, other than the two raiders to the left by the helicopter, and two guards who walk through the far end on patrol about every 4 minutes, it's pretty safe to move from cover to cover through here. 05:12 - Depending on the exact timing, sometimes Sophia's bodyguard will follow her in and sometimes he'll wander off without her. If he does come in, the gun placed here will get rid of him. If he wanders off, you can pick up the gun before she comes in. 06:04 - The timing for activating the clock is pretty tight. Too early or too late and you'll lure one of the other NPCs instead. 06:27 - Sophia Washington 06:46 - Could retrace our steps instead, but this seems easier to me. Coming in this way wouldn't work though as this door is locked from the outside. 07:02 - I should have gone left here, it would have been faster. 🤷 08:49 - Be patient here to wait for favorable positions of the moving guards. 10:24 - Besides a flare, various explosives and a gunshot to the inside of the wall around the pit also work. Shooting the torch itself is a myth though, when that seems to work you're actually hitting the inside wall. 10:48 - One of the Ark members up here can see 47 depending on his head turning, and even instinct doesn't really help. OTOH, if you're quick you can just barely not be trespassed even if he is looking. 11:04 - ... And if you get to this position he usually won't even come to investigate. I think the inside of the circle has no NPC path mesh. 11:30 - Zoe Washington No NPCs can see her here, and no one ever comes to look for her either. 12:17 - Now we need to lure the Constant into position. Where he goes depends on 47's location. Right now he's heading from overlooking the Upper Courtyard (where 47 was while killing Zoe) to overlooking the Lower Courtyard (because he started a location change while we were going here). Unfortunately we can't beat him there for the lure, so we'll have to make him go elsewhere and come back. 12:36 - Out here and up on the East Wall will move the Constant to the Hyperborea Showroom. 13:47 - I don't think climbing up was necessary, it just takes a while before he starts checking locations again from that spot. 🤷 14:10 - Now that he's heading to the Showroom, we go back into the Lower Courtyard area so he'll turn around and come back down once he gets up there. 15:51 - He arrived at the Showroom, and now turns to head back down to overlook the Lower Courtyard again. We need to beat him there. 17:38 - We throw an item past his head so he'll be the first to see it and therefore will go to inspect where it lands. Pretty much anything except a coin/token seems to work. 18:05 - You could just run through here, usually you'll barely not be trespassed. But 18 minutes in (and after several restarts), I wanted to be careful. 😀 18:23 - Watch out around this corner for a female staff who sometimes comes into the hallway. In this run I think she has just left, so that worked out well. 18:28 - Keep right and run past here in case NPCs are looking through the gate. 18:43 - Constant threatened with a clear walk to the exit.