More settings to guns

Now that we can change firerate and stuff why can't we add custom sounds when shooting? Like on the trigger/gun handles or even change the amount of ammo the laser guns have instead of the pre set ones a setting to change the bullet type would be cool too like change it from laser to paintball or cork

Now that we can change firerate and stuff why can't we add custom sounds when shooting? Like on the trigger/gun handles or even change the amount of ammo the laser guns have instead of the pre set ones a setting to change the bullet type would be cool too like change it from laser to paintball or cork