Instructions:

1. Go to update/update.rpf/common/data,
Find dlclist.xml,
Right click and select Edit
Add this line in Paths section

dlcpacks:\btr80\
press save


2. Make a folder named " btr80 " , in update/x64/dlcpacks
drag and drop inside file you downloaded.

3. Start the game, spawnname: btr80

Enjoy in game and share your impressions.

Grom

Credits: JohnMC