Many websites offer direct, free downloads of individual .rpf files. However, downloading core game archives from third-party sites carries heavy risks, including malware, outdated file versions, and potential Rockstar Games Social Club bans.
This usually means the dlc.rpf version does not match your current game build version. Run a file verification via Steam or Epic Games to overwrite it with the correct build version.
In the Rockstar Advanced Game Engine (RAGE) file structure, Grand Theft Auto V organizes its major content updates into distinct folders under the dlcpacks directory. The folder labeled mpchristmas2017 houses all the assets, scripts, 3D models, textures, and audio files associated with update.
: If an official game patch arrives while you have custom data inside your dlcpacks , the launcher can mismatch the hash signatures, breaking your installation.