Just like with movie trailers, the latest commercial showed the whole game =(
Why wasn’t there a spoiler warning ? And why did it reveal so much of the story ?
I should have muted my TV =(
well it was probably 343 that made the ad 
(i havent seen it)
That was only the third mission.
EDIT: Note i’m only assuming.
Yep. Showing the Cryptum that we’ve all seen and Mulitplayer footage is spoiling the whole game.
Trust me, almost nothing was revealed in that trailer.
Because there’s a lot more going on in this new trilogy than they are leading us to believe. You only think you saw most of the story.
raptor, don’t get your pants in a bunch, that’s not the whole campaign, that’s not even the first half of the campaign. Come back and complain that they’ve shown off the whole campaign when they show a 6+ hour long trailer.