Hey i have the Halo 4 OST and have no idea what this song is.
Eye of the tiger.
OSTs these days don’t even feature all the songs, Halo 3 didn’t, Halo: Reach didn’t, and Halo 4 didn’t either 
That really sucks…
This song is amazing :s
i have the Limited Edition version of the OST which has the Remixed versions of the songs on and its not even on there either 
Check youtube. I’ve seen a few videos containing Unreleased and/or remixes from halo 4.
It’s not on the Halo 4 Deluxe Edition.
The opening instrumentation sounds a LOT like the track “Faithless”… perhaps it’s some unreleased Remix of that track.
the book on the limited edition soundtrack did say that they made a lot of song, and that theres no way they could put all of them on the soundtrack.