Oh goodness, what the hell was with the voice overs, they were terrible. Cringe worthy and you're over acting Steitzer, it stops sounding cool when you are overplaying every word.
Too many medals and announcements. All that ego stroking gets dull fast, if I'm getting half a dozen medals per kill, I don't care for them anymore and would rather hide them from the HUD. Same with announcements for everything, it stops being amusing and ends up resulting in Steitzer's yelling becoming an unoffical OST.
As for the game itself, it looks cool. Lightrifle scope-in is alright, hope some more mode variations/info are teased, small scale arena isn't all there is to Halo.