You have the healthpart 2 times
Code:
register_cvar("unsung_health", "75") //YES IT'S 75!
register_cvar("unsung_health", "900")
I don't understand why
For immune to headshots you should look at Crimson Chin
For unlimited ammo (for all guns) look at Punisher and for one gun look at Morpheus or Master Chief
For lower Health you should look at Casper, if it doesn't work
Code:
register_cvar("tutorial_speed", "300") //Cvar holding the heros Speed
is slower and not faster (375 is normal speed)
You wrote a cooldown code, but you have it a non-binded hero
Code:
register_cvar("tutorial_cooldown", "0" ) //Cvar holding the heros Gravity
And at the part with register_cvar you called it tutorial_gravity/level/and so on, but at the beginning you wrote unsung_level/health, so I'm a bit confused