“Carrion” is a hard rock song known as the easter egg song on the Black Ops II zombies map “TranZit”. It’s popularity skyrocketed after the other two easter egg songs “Try It Out” by Skrillex and “Carry On” by Avenged Sevenfold were removed, leaving only “Carrion”.

The song was made entirely by the Treyarch music development team, but it was primarily made by Kevin Sherwood and sung by Clark S. Nova, though, of course, in the instrumental version, Clack S. Nova is not credited. The song was later re-released on the Mob of the Dead: Soundtrack and Treyarch’s Call of Duty Music Anthology, Vol. 1.

To activate the song, one must activate three teddy bears scattered around the map.

1.) The Bus Depot – On the bench closest to the fog heading to the Diner.
2.) The Farm – In the farm house, upstairs on a mattress.
3.) The Town – In the bar in a booth to the left of Stamin-Up.