Exusiai (She started this idea after I was posting some SFW Kataokasan art to a discord and ended up talking about trigger discipline)-All skins appear to have good discipline, though with a few you can only see an outstretched finger with the end obscured, but with what I can see, she gets a pass.
Adnachiel-Clear pass in base art, skin is a bit hard to tell but looks like a pass.
Ambriel-Iffy with E0 art, but her E2 art is a pass. Not even holding her gun in her skin.
Enforcer-E0 is fine, not holding his gun in E2 and his skin.
Executor-Can see the trigger clearly with no finger on in in the E0 art, and in his E2 art he's got his finger clearly outstretched. In his skin, his right gun has good discipline, but I cannot see his left hand.
Executor Alter-E0 is fine, right gun is being carried by the stock, while the left gun looks like it's holstered. E2 looks fine to me, can't see finger on right gun, so assuming it's outstretched, and can clearly see finger go past the trigger on the left gun.
Insider-E0 is holstered. E2 has good trigger discipline, but he shouldn't be pointing his gun at the sky.
Spuria-E0 fails. Instantly fails. Finger is on the trigger. Her E2 is a large improvement, but shame on her.
Now, for the non-Sankta ops.
Jessica-Everything but her E2 art is a pass, though like Insider, her E0 art shouldn't be pointing her gun at the sky.
Ash-Passes
Blitz-E0 is holstered, and while his finger is on the trigger in his E2, he looks like he's in a situation where he's about to shoot so that gets a pass from me.
Frost-Cannot tell with E0, but her E2 passes.
LORD TACHANKA-Pass.
Liskarm-Pass on E0, cannot tell on her E2, and one of her skins looks like she may be in a combat situation. Other skin doesn't have the gun out.
Vigil-Failed. His right gun has his finger off in E0 (but aimed at the sky), but his left gun has the finger on the trigger. E2 is hard to tell, but looks like poor discipline.
Irene-Passes, due to her gun being holstered, albeit in a poor spot.
Fiammetta-Pass.
Kroos-Finger on trigger. Insta-fail.
Kroos Alter-I cannot tell where the trigger is, so I cannot conclusively fail or pass her.
Totter-Passes in E0, but E2 is a fail. Finger on trigger plus pointed at sky.
Pozëmka-E0 is a pass, her hand is obviously placed lower than the trigger. E2 is a pass...? I don't even know how she's holding her crossbow in her E2 art. Her skin doesn't have her holding her crossbow.
Firewatch-Pass.
Schwarz-Pass.
Absinthe-Hard to tell, as I have no idea where the trigger is. But E0 feels like a pass and E2 feels like a fail, so ¯\(ツ)/¯
May-Fails. Doesn't look to be in a combat situation, so the finger on the trigger is an instant fail. She isn't holding her gun in E2.
GreyThroat-E0 is a fail. E2 and skin are a pass.
Catapult-Hand isn't even on gun so pass, but I'm failing her because she looks like she just tossed it aside and because she insulted a cute perro.
Sesa-E0 passes, but pointing at sky isn't good practice. E2 is a fail. Double fail since he uses explosives, so a misfire literally kills him.
W-Pass, but barely. Gun is holstered, but very carelessly. But this is trigger discipline, so she still passes.
Aciddrop-The cool bird passes, though E2 falls into the pointed at the sky trap.
Andreanna-Pass.
AOSTA-E0 is a pass, while E2 looks like he could be in a combat situation, so a maybe there. I understand it's a game controller in his skin, but his skin is still a fail.
Pinecone-E0 is a fail, while E2 is just barely a pass. Her finger is still bend, but it's evident that it isn't on the trigger. Her hand is obscured in her skin.
Fartooth-Cannot tell. Her hand/trigger is obstructed in both applicable arts.
Bagpipe-Pass, her hand is clearly off the trigger in every art.
Ayerscarpe-E0 seems to be a completely different weapon, but E2 is a pass if it's a combat situation, while his skin is a fail.
Ch'en Alter-Fail.
Firewatch-Pass.
Provence-Pass.
Meteorite-Pass. Finger looks to be on trigger in E2, but it's clearly a combat situation.
Blue Poison-Pass.
Beanstalk-Pass in E0. Thought E2 was a pass at first, but then I realized her crossbow doesn't have a trigger guard, so her E2 is a fail. No crossbow in skin.
Blacknight-E0 is an automatic pass, while E2 is an automatic fail. WHY THE HELL IS SHE SHOOTING AT NOTHING WITH HER CROSSBOW POINTING AT THE SKY IS SHE STUPID? Not holding crossbow in skins.
Glaucus-E0 is a pass, E2 is a fail. I have no idea what her skin is.
Stainless-He's using a drill, but still poor trigger discipline, so shame on him.
These are all the ops that me and the r/0sanitymemes discord could come up with, so please let me know if I missed anything! ~~I've been writing this up for an hour lmao~~
Firewhistle runs a PMC? Damn.