Been playing some more, I have a better appreciation of the singleplayer now that the difficulty has increased- though I wish there were more times where I really feel like a smooth criminal rather than some guy bumbling around and getting by on pure luck.
That's my biggest gripe really, I'm just bumbling around reacting to guards and lasers that pop up out of nowhere due to the limited view. It doesn't feel strategically stealthy at all, I can't plan out routes and not being able to take down the pop up guards is annoying. Weirdly Hotline Miami is a better stealth game.