The asteroid.rar file you have requested: Modifications / Map Mods / A to B Titles / Halo Asteroid - 4.41mb 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 large map that takes place in an asteroid field. The map ranges form small to large at different points.