That was a pretty damn awesome trailer! I just love when-ether Halo media references the first half of Fall of Reach...and I think that was the most effective example of it I've seen yet. Especially with the augmentation surgery. It's rather obvious they were very inspired by this one artwork piece for that scene where Master Chief is getting suited up.
It's the image of this towering, brutish figure being encased in armor by these sterilized scientists.
then of course you had that gameplay of Chief whooping ass. Loved it!
also, new Forward Unto Dawn.