The Lunar-class Cruiser forms the backbone of Battlefleet Calixis, with over <classified> in service with various subordinate Fleets. The Lunar-class is a robust and versatile vessel. It has a balanced loadout of weaponry, combining a powerful torpedo battery with multiple long-range lances and numerous secondary batteries. The class is also well-armored and shielded, and has sufficient defensive turrets for a vessel of its size. Speed is average for a cruiser. The Lunar has multiple small-craft, but it is not designed for carrier operations. Given Battlefleet Claixis' general lack of battleships the Lunar is often employed in roles more suitable for heavier warships.

Overall the Lunar is an excellent vessel, lacking any obvious weak spots and carrying enough firepower to compete with other cruisers. Its greatest strength, however, lies in its ease of construction and maintenance.  The Lunar is a shining example of the majesty of a pure STC-template construct. It it can be manufactured in orbit of hive and industrial worlds with little-to-no shipbuilding expertise - there are even examples of Lunars having been painstakingly assembled over primitive worlds - using whatever materials and components are available. Because of this great flexibility in the Lunar-class STC-template there are literally no two Lunars that are exactly the same.