What wub wub are you talking about. Also I can EASILY see how this song will fit into the story of Halo 4. Its pretty apparent its forthe revival of the Didact and the chants might also be the same ones used to revive him in Cryptum
Well, it's not really a wub wub, but it's kinda weird for Halo. It begins at 1:17 (coincidence?).