Here are my suggestions:
Bugs:
- Yellow flashing everytime you shoot
- SMG stopped firing after about ~200 kills
Features:
- V-Sync toggle (other graphical options would be nice)
- Hold to crouch feature
- Have some sort of indicator of where the Ammo Box is when you run out (took 4-5 playthroughs to find)
- Game customizer resets after every match (needs to be cached)