Finally finished it. I love it even though I had a hard time completing Mission 4 & 6 as a stealth playthrough. Here's my full gameplay video :)
Btw i think i encountered a bug where the sentry turret will shoot you as well aside from enemies. it's in my video in Mission 5
Also, a feedback: it will be great if there is a silenced version of the SMG as a "New Game+" mode. I understand that the SMG cannot be silenced for weapon balancing reason but it would be fun to play it again with an overpowered weapon that won't alert anyone