11A2R1 naval coilgun battery

The 11A2R1 naval coilgun battery is a large coilgun mounted on some United Nations Space Command warships.

Service history
In 2520, the  was outfitted with ten such weapons. During the Human-Covenant War in 2531, these weapons were often used to provide orbital fire support for the ship's crew. During the Battle of the Etran Harborage, these cannons were used to defend against a Covenant CPV-class heavy destroyer, as well as numerous Spirit dropships and their Banshee escorts, while the ship's Marine and Spartan complement fended off boarders and repaired the drive core.

List of appearances

 * Halo Wars
 * ''Halo: Fleet Battles
 * Halo Wars 2