WHAT IS WHAT

• entities
  • Extracted entity lump files from each map. You won't have this unless you use dumper.py yourself or have extracted all of the files from entitiesgz.
    • You can run python sync_entities.py to prepare this directory. It'll end up being around 6GB.
• entitiesgz
  • Compressed (.gz) entity lump files for each map
• filelist
  • CSV with the list of packed files in a .bsp
• ignore.csv
  • CSV with the list .bsp's that had errors or warnings from dumper.py
• ignore_pak.csv
  • CSV with the list .bsp's that had errors or warnings from dumper.py's filelist step
• lump_checksums.csv
  • Lump checksums that are used by the Source Engine to verify players are on the correct map. This checksum is also in server logs when changing maps.
• original_mapname.csv
  • Potentially original map-names deduced from file names of packed files, such as cubemaps, .nav's, and more.
• timestamper.py
  • Something. Unused now.
• timestamps.csv
  • Timestamps for .bsp files. May or may not be close to a map's creation.
• vscript_probably.csv
  • Maps that pack or run vscript code; probably.