Wow... there's something about these trailers (and Metal Gear in general) that is just super appealing. This is no exception. Like, you know there will be humour and that the game will likely poke fun of itself in places, and somehow that makes the serious melodramatic stuff that much more epic. Also, I really have no interest in war and military and guns, etc. but Metal Gear makes me care. It covers all these themes in a fantasy world, which is where war should stay.
Everything about the trailer itself, from the teasing shots of people to the music choice is just great. Maybe it doesn't have the same impact as the initial Phantom Pain trailer, but it still gives me goosebumps.
I'm not even going to attempt to understand half of what's going on, but by gum I am excited.