R = Shoot (Holding Down For Better Shooting And Damage) F = Reload (+500 Ammo When Done Reloading) G = Heal Enemy (I don't know why you would heal you're enemy when you try to kill them but ok) Plus The Minigun does around 750 dps per second. And can do up to 4050 dps in 10 seconds.
I ended up scrapping the TF2 demoman animation and will end up making small clips of the characters doing stuff every once in a while. So for not having the animation up and running, I made this game for you guys (why do I say guys when nobody sees these) and whats left of the demoman animation that I'll upload soon.