"Ultimate Mappack 3" (UMP3) is a merger of UMP2 and the 7 updates into a single release with
     the addition of a few new maps.
     UMP3 also eliminated these quality issues:
     * Compressed audio files.
     * Removed several byte-for-byte duplicate copies of maps.
     * Removed low-quality or nonfunctional levels.
     * Removed unreferenced game resource files from the mappack.
           - Includes any textures, models, skins, sounds, sprites, .pcx, that were not used by any map or
           .spr & .dtx file in the ultimate mappack.
     * Restored missing game resource files that were distributed with the maps that were missing them.
     * Base AvP2 game resource overrides completely removed - mostly introduced
       by UMP2 Updates.