From Halopedia, the Halo wiki
Album:
Halo 4: Original Soundtrack Volume 2
Composer(s):
Kazuma Jinnouchi
Length:
3:16
Previous:
Green and Blue
Next:
Gravity
Atonement is the first track on Volume 2 of the Halo 4: Original Soundtrack.
The song ends with the first five notes of One Final Effort. This ending is later reused in Blue Team from the Halo 5: Guardians Original Soundtrack.
This soundtrack can be heard: