Work Burns and Runaway Grunts
From Halopedia, the Halo wiki
Work Burns and Runaway Grunts is the fourteenth track in Halo Wars: Original Soundtrack.
The track opens with synthesizers before strings enter with a slow and melancholic melody. Halfway through, synthesizers join in, briefly taking over before strings return in a dramatic reprise of the melody. The track ends with digital effects and synthesizers fading out.