Shreddin'

Shreddin' is a music piece that appeared in Halo: Combat Evolved, but was not featured in Halo: Original Soundtrack. However, it was later released as a free download on Bungie.net.

Appearance
The music appears in-game as an flip music in the campaign level 343 Guilty Spark, when the John-117 is playing the recording chip from Wallace Jenkins' helmet. It plays when Avery Johnson and his squad are aboard the Pelican enroute to the Flood containment facility. A second section, featuring an electric guitar solo, was omitted from its in-game appearance.

Production notes

 * The track was previously titled What?, and Martin O'Donnell has called the first section "a travesty".
 * Shreddin' appears to have a similar tune and beat to hard rock band AC/DC's song Back in Black.
 * Judging from datamined info from Halo: Combat Evolved Anniversary, Shreddin' may have originally been intended to be Rock Anthem for Saving the World before it was replaced with the final piece. It features interactive elements like other tracks in-game, such as an introduction, alternative loops, and an ending.