Plasma cannon

Plasma cannon may refer to the following:
 * Shade - The Covenant's main stationary defense plasma turrets.
 * Type-26 Anti-Infantry Stationary Gun - the variant seen in Halo 3, Halo 3: ODST and Halo: Reach.
 * Type-27 Anti-Infantry Stationary Gun - the variant seen in Halo 2.
 * Type-29 Anti-Infantry Stationary Gun - the variant seen in Halo: Combat Evolved.
 * Type-42 Directed Energy Support Weapon - A Covenant heavy support weapon seen exclusively in Halo 2.
 * Type-52 Directed Energy Support Weapon - The Covenant's standard portable plasma turret in Halo 3, Halo 3: ODST and Halo: Reach.
 * Class-2 Energy Gun, weapons mounted on many Covenant vehicles.
 * Plasma turret - The powerful plasma turret on Covenant warships.
 * Covenant automated plasma turret - the Covenant defense structures used to protect the Covenant citadel as seen in Halo Wars and the turrets seen in the Halo 3 multiplayer map, Snowbound, to prevent players from exiting the combat area.