One of the first submarine classes concieved, designed, and mass produced by the Jovian Separatists (specifically the city of New Tormsdale and the Jovian Liberation Front), the Lorentz is a attempt at a unique light combat vessel able to deliver outsized punch at low cost and at high speed. This is accomplished via a single spinal Electrode Light Railgun. While this new model is inferior in all regards but size and firepower, it gives a potent sting to a otherwise lackluster and cramped design.
T1 Attack Sub with a gimmick main gun and awkward design. Frontal railgun is single shot, manually loaded, with a very limited field of fire, longer reload time, and higher energy cost than a standard one. It is still a railgun on a Tier 1 sub. Features a truly unique but vanilla friendly gimmick, a appropriately ramshackle design, and dramatically improved effectiveness once you've added a second turret. Shame the Seps can't afford it by default.
Note: for unknown reasons, clicking on the frontal railgun in the engineering upgrade screen or status monitor will crash the game. Do not do this.