Oh crap those videos that you posted in the OP weren't what I thought they were, I thought they were gonna be these.
I obviously didn't look...
Then I realize you just posted the gamescon trailer.
So I only have that one gameplay trailer to contribute now!
--
~Halo Now you learn the mistake of challenging me.
http://img408.imageshack.us/img408/2734/hieis.jpg