I'm not good at FPS's, let's get that out of the way, but there are a few things that needs to be in every FPS shooter. Inverted controls were missing so i had to adjust to regular controls. please try to implement it in any FPS you build. Also I'm not a fan of one hit kills. It makes the game feel punishing. I quit after killing about 15 monsters only to die to a single fireball. Ui/UX needs some work but its functional. I think it will benefit from some crunchier sound effects and improved visuals.
I was a bit overwhelmed with the story exposition in the beginning, but this is great work though.