Lets face it. Any 480i Live action TV show looks more realistic than any game out there right now. If Bungie want to achieve more realism in their lighting by going to a lower res than thats fine. Higher Resolution does not equal better graphics people. Better lighting for sure does and if it means sacrificing a few precious pixels to acheive it (and maintain a good framerate) then so be it. Maybe if the Lair developers had tried something like this then maybe a lot of the game would have run...
Looks like a cool shooter, kinda like beachhead but good.