Also huge find is a faster 15-4 early. This is consistent enough that you can go for it in runs.
https://youtube.com/playlist?list=PLaI1e6b0GJt7X4AS5Wdola1sc02ZtMpJ2&si=c5yM4ZIeEeNlZSTj
Back in the day I found a bunch of things in this game, only a few I have uploaded on youtube here, these get pretty insane be careful, you will hate the 15 one x)
Haven't watched the videos here so I don't know what's known etc, just sharing what I have here. I might have other raw videos I haven't uploaded, but from what I remember there was an early-ish town level where you could skip almost everything by going really high above the level (sorry it's been years lol)
One sure thing, DON'T underestimate gadgets :p (I don't remember how it worked but there's a way to route components to guarantee you get what you need)
Edit: I see you found the way to clip through gates with the decoy in that 1st video :p This can be used in a few places!
Edit2: I added 3 more videos, showing interesting things I had found like unloading guards vision to let the girl pass through, letting her clip through a gate, and that weird jump, which was I think a glitched interaction between the physics and the rewind function. The running over the roofs looks a lot like what I was talking about but I think it's another level, I distinctly remember not using explosives to get up there.
Really wish I had recorded a full run, as slow as it could have been, using all the strats, but never got around to it :')
