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)

FrenchyAU's tacticool attachment packs are STRONGLY recommended, because all of them have new unique stats with GIlza. They are ordered in order of importance/impact on weapon modding. Various WeaponLib crashes and bugs are fixed if you have Gilza installed on top of it.