The bloodgulch_1195596039.map file you have requested: Maps Levels Missions / Bloodgulch Maps / Bloodgulch - 13.7mb is not available. Perhaps try browsing all files for the game Halo: Combat Evolved and upload any files you want to share or are missing. This is the only information we could locate:
A mod for PC Bloodgulch. The UNSC have developed more advance weapons to combat the evolved weapons of the Covenant. They have a Jet plane now.