Overall I really enjoyed your game. The sound design was very well executed and I really appreciated the health bars on the zombies. The one hit down was brutal but every time I died, it felt like it was my fault and wasn't poor design. The ammo reloading was a nice touch, I truly felt defenseless and like I had to pick my moments well to reload, otherwise risk death from the undead hordes. A way to cancel it could have been nice but I see why you didn't go that way. I also loved the dynamic lighting effect, it truly added to the suspense and the overall experience greatly. I was also super surprised to see a global high score system, I can't recall ever seeing one in a game jam game before and am very impressed by it.
If you wanted to improve, I suggest some form of main menu and tutorial, I was surprised to be dropped straight into the game with no direction or understanding of the controls.
Here's my game: https://itch.io/jam/blackthornprod-game-jam-3/rate/898826