Fg-optional-multiplayer-build.bin File
fg-optional-multiplayer-build.bin is a selective component file found in FitGirl Repacks
Why separate them? Many modern games have massive file sizes due to high-resolution textures and audio files specific to multiplayer maps that are never used in the single-player campaign. By separating these into an "optional" bin file, the repacker allows users with slower internet connections or limited hard drive space to skip downloading 20GB–50GB of data they will never use. fg-optional-multiplayer-build.bin
Installation: The setup.exe automatically detects this file if it is in the same folder. If present, the installer will include the multiplayer files; if missing, it will simply skip that component and install the rest of the game. Should you download it? fg-optional-multiplayer-build
Thus, fg-optional-multiplayer-build.bin is a compressed archive of multiplayer maps, network code libraries, voice chat assets, and matchmaking UI elements that are not needed for the single-player campaign. Optional tooling/debug info
Part 6: Comparison – FitGirl vs. Other Repackers
It is helpful to see how other repack groups handle multiplayer data to fully appreciate the fg-optional-multiplayer-build.bin convention.