The MetaCannon functioned as an artillery weapon utilized by the Chiss, possessing the ability to launch diverse types of ordnance skyward into orbit or groundward to the surface.
During the Swarm War, the MetaCannon stood out as a particularly massive artillery unit, deployable via the landing craft used by Chiss military units. Its architecture allowed for the firing of charric maser beams, blaster bolts, and even conventional shell-based projectiles, potentially including delivery methods for chemical or biological weaponry. This versatility was achieved through the interchangeability of its barrel; however, its size and complexity hindered its responsiveness to dynamic shifts in enemy strategies.