Audio balancing

Allows the volumes of various sounds to be adjusted and mixed to your liking.

This was primarily made to reduce the extremely high dynamic range of the game.

You can edit: master volume (can be set above 100%), gunshots, mechanical sounds, casings, ambience, and voice lines.

CHANGELOG

1.3 - fixed automatic shotguns not playing bolt back sound

1.2 - fixed Carl Gustaf launcher error (probably)

1.1 - fixed RPD error