1. Find where your PAYDAY 3 copy is installed. The location of this folder will vary depending on your installation preferences & storefront.

• Steam
• Epic
• GamePass

2. Installation:

• Mercury Mod Manager
  If you have Mercury Mod Manager installed extract the contents into .../PAYDAY3/Binaries/Win64/Mods or .../PAYDAY3/Binaries/WinGDK/Mods

• Manual
  If you don't use Mercury Mod Manager or prefer to just use the default UE4 pak mounting extract the contents and move the mod .pak file into .../PAYDAY3/Content/Paks/~mods. Create the folder if necessary.

This is a simple .Pak mod quick instructions below

Download the mod, it should give you a .Pak file (if not scream and call for help)
Take the recently aquired .Pak file and throw it gently into your "~mods" folder inside your payday 3 local files! (C:\Program Files (x86)\Steam\steamapps\common\PAYDAY3\PAYDAY3\Content\Paks~mods)
PayPal me $40 and load the game to Enjoy!