The odd_mod.zip file you have requested: Modifications / Map Mods / O to P Titles / Odd Mod (Trial) - 5.4mb 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:
Backup your map and replace the map to the moded map. Ok? Ok.You will be holding a Oddball And other stuff. This is a map for Halo trial by SSumar. This map is an alteration of Bloodgulch that does a few things; replaces Banshee with a covenant turret, adds an oddball where the pistol usually spawns in both bases and removes the turret for the normal warthog.