What is the music playing in the recent "Halo Reach" commercials?

[allydancer0107]

Sounds like something from Pirates of the Caribbean or something. If anybody knows please tell me!
idk what recently is for some people but here's what i've seen that i'd like the music identified:

http://www.youtube.com/watch?v=05MFKorWo9Y

 

[Doriyan]

I think it's called Lone Wolf. By the way Halo: Reach will be awesome.