Wonderful submission! This is in my top faves of this jam! Once I started conserving ammo the game got a lot easier. Especially for a one month jam game, I think that this one is near perfect. The controls are great, pacing is good, stealth mechanic works great (a little too well sometimes!), good enemy variety and AI, nice puzzles, good weapons, etc.
Did you really make all of this art and do the game design and coding all in a month?? Kudos! This feels like a complete indie game demo, ready to go and raise funds and/or gather a team! Very pleasant experience all around!