This mod adds the Warthog Run theme from Halo 3 as a heist track.

Stealth: Finish The Fight (0:00 - 1:07)
https://www.youtube.com/watch?v=QAeeYohFL1Y

Control and Build up: looped portions of Warthog Run

Assault: Warthog Run
https://www.youtube.com/watch?v=MtPsAf3bgAA