From Halopedia, the Halo wiki
Album:
Halo: Combat Evolved Anniversary: Original Soundtrack
Composer(s):
Martin O'Donnell and Michael Salvatori (adapted by Brian Trifon, Lennie Moore, Paul Lipson, and Tom Salta)
Length:
1:49
Previous:
Unless You Mean to Shoot
Next:
Strung
Infiltration is the sixteenth track (Disc 1 Track 16) in Halo: Combat Evolved Anniversary: Original Soundtrack.
The track is an arrangement of a variation of the third section from Truth and Reconciliation Suite in Halo: Original Soundtrack. The variation, which plays in the opening cinematic of the campaign level Two Betrayals was omitted from the soundtrack.
The track plays in place of the third section from Truth and Reconciliation Suite in Halo: Combat Evolved Anniversary, during the opening cinematic of Two Betrayals, when Cortana reveals herself in the control room and explains Halo's true purpose to John-117, up until the point where 343 Guilty Spark prepares to threaten John-117.
Random Slipspace Trajectory • Bravery, Brotherhood • Installation 04 • An End of Dying • Pale Rider • Yawning Chasm • A Private Service • Rock in a Hard Place • Flotsam, Jetsam • Captain, My Captain • Suite Fall • Demons and Heretics • Exfiltration •