maybe to avoid some sort of confusion or given the fact that alot of halo fans don't like anything that has to do with the arbiter
no. it was becuase the arbiters wood be naked. no armor, so yea.
Dude, why cut out such an awesome idea? WHY?? Wait a minute? Didn't MC already entered it in Halo 2 to fight the Covenant Seperatists and Covenant Loyalists on the level Gravemind? Yeah he did! Although it wasen't Halo 3 and full of Flood crap, though. So, yeah.