???
That video had probably more input from the marketing department than from Bungie.
You're not being fair. If it was on first person, mimicking gameplay like the KZ I could understand your argument.
But it was a CG trailer like the God Of War CG trailers Sony shows at the Superbowl. Did you expected GOW to look like those too?
What? I'm comparing the Halo 3 e3 06 trailer to retail.