Make sure to first have SuperBLT, and BeardLib installed. Click the links in the dependency list.

Optional video tutorial for installing SuperBLT, BeardLib, and mod_overrides mods: https://youtu.be/rin_sjSJIkg

1. After downloading the mod, use a program such as 7zip or WinRAR to extract the main folder of the mod.
2. Drop that folder into the mods folder which is supposed to be in the game's installation folder (don't know where that is? click here)

First, make sure you have SuperBLT and Beardlib installed. Goes without saying.

Second, make sure you have Offyerrocker's Advanced Crosshairs, Hitmarkers, and Hitsounds (ACH) mod installed. This is EXTREMELY necessary for this mod to work.

Third, extract the archive to PAYDAY2 > mods > saves > ACH Addons > Hitsounds. Make sure ALL folders are in that folder in order for the game to register them.

That's it. Have fun!