Thanks for the feedback and for playing the game! Can you try on low settings and see if it works?
Also the ammo is hidden and the idea was to force player to try stealth cause frankly it’s so much more thrilling to play sneakily!
You can get 8 ammo in room 1, try behind the large square steel objects (super secret location :P), and 2 ammo pack on room 3. Also killing enemies gives 3 ammo.