cassian was messing with some pipes in the bathroom, he may be figuring out a way to knock out/kill all the guards with some sort of gas but maybe he has to get to a point through one level so knowing they would have to quietly take out 12 guards first to let them get knock em all out.
thats the cool thing about these kind of heist shows, cassian did a bunch of stuff this episode which doesn't seem to make much sense but I am 100% sure it'll come into play next episode when we see what he was working on. talking to the guy about the elevator, the toilet stuff he was doing, all the cross level talking, its building up to something.
one funny thing about Syril the incel, his mom means well but treats him like shit and you can tell he is seething and resentful of her, but he immediately embraces Daedra as "work mommy" telling her he believes in her cause and that she gave him the inspiration to keep living (wtf bro, no fucking woman wants to hear that stalker/killer vibe lol). That dude has some serious mommy issues.
be interesting to see social media hot takes on daedra by the end of the season, the ones around Alicent/Rhaenyra in HOTD were sometimes nuts