The Gun Pointed at the Head of the Universe

300px The Gun Pointed at the Head of the Universe is a piece included in the Halo: Original Soundtrack.

It runs for 2:28 seconds.

Trivia

 * The name of the song is most likely in reference to the Halo Installations, or the "Gun Pointed at the Head of the Universe". It plays multiple times in Halo: Combat Evolved; from the levels Halo to 343 Guilty Spark, where it is featured most prominently at the end of the level.
 * The name is also a chapter in Halo 1, during the level "Two Betrayals".