Last time I checked, I owned you. Plus at least I don't need 45 minutes for one room on heroic. I did the whole damn level in 45 minutes on Legendary.
The real reason is that I can't be asked to play a game with arbitrary melee bs that doesn't let you do any skillful combos. Plus H3 is infested with shotgun and mauler noobs. No thank you, back to Halo 2 for me.