When you start new game, all weapons are available in your weapon wheel.
NOTE: When you use a weapon and run out of ammo, the mod takes 3 seconds to reload ammo automatically. Why do I give the mod time to reload ammo? Because if there is no cooldown, You will experience game crashes when doing the storyline mission "Balls Of Snow".
After downloading, you will find 3 folders:
Scripts (if you want to use this mod directly);
LUA Compiled (if you want to combine this mod with your own mod);
LUA Command (if you want to know how I control this mod).