Ensure a folder named exactly mpchristmas2017 exists inside dlcpacks .
In technical terms, the mpchristmas2017 DLC (Downloadable Content) pack is a core piece of Grand Theft Auto V's file architecture. For reference, the file path is typically GTAV\update\x64\dlcpacks\mpchristmas2017\dlc.rpf . It is an archive file format ( .rpf ), specifically Rockstar's proprietary "Resource Package File". This archive functions like a compressed folder that the game engine unpacks on the fly to access all the data contained within. Update X64 Dlcpacks Mpchristmas2017 Dlc.rpf Download
The 2017 update brought some great vehicles. You can repurpose the DLC pack as a dedicated "Winter Drift" expansion. "Low Grip, High Stakes." Ensure a folder named exactly mpchristmas2017 exists inside