Before replacing there, do not forget to make a backup copy of the folder and drop your standard dlc

Grand Theft Auto V\update\x64\dlcpacks\patchday8ng
Grand Theft Auto V\update\x64\dlcpacks\mpgunrunning 
Grand Theft Auto V\update\x64\dlcpacks\mpchristmas2017 

Eternal discord link with our mods for gta 5: https://discord.gg/tdke3DxKTA
Gunpack creators: Чсв#8152 and exqzm3 orgnl#4249