Bad Here Day
From Halopedia, the Halo wiki
Bad Here Day is the second track from the Halo Wars: Original Soundtrack.
This soundtrack, along with its alternate version, plays during Halo Wars's gameplay on any interior of Shield 0459-based campaign mission or Skirmish levels, though the alternate version usually plays in the beginning of the levels.
The alternate version
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The name of this soundtrack is a play on the common phrase "Bad Hair Day".
