Shotgun Spree is a spree medal awarded in Halo 3, Halo 3: ODST and Halo: Reach Multiplayer, Campaign and Firefight. In Halo: 3 and Halo 3: ODST it is awarded for killing ten opponents in a row with the Shotgun without dying. In Halo: Reach the medal does not require kills to be consecutive, just that the player kill ten enemies with the shotgun without dying.
Melees with the shotgun do not count toward the medal.
It is represented by a bronze five-pointed star with three green shotgun shells. This medal can be easily obtained through many maps, but is easiest to get on common camping spots or in objective-based games where the focus is drawn away from killing. Especially on maps such as Epitaph, Foundry, Guardian, and Orbital. 
- Snowbound is an easy map to acquire this medal on. Grab the Shotgun in the caverns below the surface, then patrol that same underground area, utilizing the energy doors and narrow corridors to trap opponents.
- Guardian is another easy map on which to obtain this medal. Just camp at the vent where you got the Shotgun, and look out for the action above. You can also camp near the yellow lift.
- The medal was nicknamed "Cheneymania" during development, a reference to the February 2006 Dick Cheney hunting incident.
- Bungie Weekly Update 09/26/2008 "There was a lot of debate about medals in the game, and one of the most highly debated medal was the 10 shotgun kill medal that we originally dubbed ‘Cheneymania’ in honor of our Vice President and his hunting accident."
The new remodeled version in Halo: Reach.