Yeah, it's pretty good. It's not "frame perfect" though, there's a couple where it's not in sync and then a lot of the close ups are just dudes heads in Reach with no movement.
 
It is good work though, nice editing.

That was pretty great!

That was pretty god damn awesome.

That was brilliant.

Pretty good. Makes me wonder how they got the building to fold in ForgeWorld lol.

I saw Halo Waypoint post this last night. It wasn't until I watched the comparison video that I really saw how well-made it was, brilliant stuff.

Not bad -- the subtle head movements are very good, but the fact that can't ever see faces makes those parts, drag? I don't know... all the big setpeice stuff is excellent.
 
That said, I still think the best one of these is still:
  

bravo 

That was pretty damn awesome.

BBRRRRAAAAAAAAAAAAWMMMMM

This is tiiiiight. Kinda getting tired of Inception as the go to movie, though, for these types of things.

both of those were awesome