r to reload space to fire e to change fire modes like and fav for m4 meme version this is just a meme version of https://scratch.mit.edu/projects/667327228/
thanks @luke3104 for the weapon (if semi=0 that means full auto, if semi=1 that means semi.) Also reloading without firing all 30 bullets will make it so you don't chamber the gun. Firing all 30 you will chamber the gun.
