The Concord cannon an air-to-ground plasma cannon developed by the Terran Dominion for the Liberator. The cannon possesses immense firepower, but cannot be fired while moving. As such, liberators were outfitted with terran transformation technology in order to switch to a stationary anti-ground mode, where it can make use of its Concord cannon.[1]


  1. StarCraft II Units: Liberator, Blizzard Entertainment. Accessed on 2016-05-17