Really good game. The movement felt polished, but there is one bug(I am not sure if it only happened to me), where the aim randomly goes crazy for a split second. However, the lack of a crosshair added more intensity to the gameplay, which is a good thing in my opinion.
There is one thing I slightly disliked, which was the design of the last level. Those spaces near the walls made me restart the round many times because I kept getting stuck.
The textures and overall visuals are on point, and the game looks and feel polished.
Also I am quite interested in the technical aspects of your game: how you coded the movement, the design of the tutorial, models and textures. This is because I would like to make games with this art style as well, but I find it a bit hard.