[quote]Check time stamp for the youtube video around 09:45. Congrats on Bungie's finding another way to cut costs, after getting away with it in episode Heresy.[/quote] No, this is literally a well established part of the lore. The nine do not have bodies or voices, hence them using the emissary to communicate. The actors who could not voice their characters because of the strike were temporarily recast and are voiced in the expansion. Neither has anything to do with saving money.