Hallconnen/Hallconnen II

The Harkonnen II is an extremely heavy and destructive weapons system designed for and used by Seras Victoria with the exclusive purpose of defending Hellsing Organization headquarters.

Information
It had a gross weight of 345kg and sported a pair of 30mm auto cannons belt-fed from two large ammunition boxes carried on her back. Its maximum range was 4 kilometers (4000 meters), and was used to destroy a barrage of Millennium's missiles in midair and even shoot down one of their airships; the system was used to great effect against Zorin Blitz's invasion force, considerably thinning her forces and prompting a ground invasion.

Vladimir
For additional firepower, the pair of cannons could double as a grenade launcher, launching two of the explosive incendiary grenades for wide-area field dominance "Vladimir," one from each barrel.

Described as a "Wide area saturation, high explosive incendiary grenade launcher", the Vladimir (named after the "Dune" character) is a set of fictional muzzle-fired grenades that are part of the Harkonnen II weapon system. Seras uses these to deliver the final blow to Zorin's Zeppelin II. They are fired seemingly in a similar manner to most muzzle-fired grenades, however, the ignition seems to be primed with a live round, whilst most real grenades of this type are fired utilizing a blank round. Due to Seras' vampire strength, she could move around with the system with relative ease after she discarded the massive ammo boxes.

Profile

 * Caliber: 30mm uranium ammunition
 * Total length: 1900mm (1.90m)
 * Weight: 345 kg (with belt box)
 * Magazine: Decay Belt (100+ rounds)