From Halopedia, the Halo wiki
The Covenant Super-Destroyer and Battleship are possibly same class. I've been researching this and believe that the illustrator for Halo Wars: Genesis used this line from Halo: First Strike as inspiration: "vessels with five bulbous sections that were nearly two kilometers stem to stem and had a dozen deadly energy projectors." In Genesis, the super-destroyer is depicted as having five bulbous sections and multiple energy projectors. This connection is further reinforced by Halo: Evolutions which came out after both the previously mentioned entries. It states that the vessel has a length of two kilometers and possesses multiple energy projectors. As you can see, the shape, size and armament of this class have all been described in at least two pieces of fiction. Since you are knowledgeable in these regards I hope that you will come to the same conclusion. I've been reading this wiki for years but only started editing it recently. Subsequently, I'm not completely sure if I need administrative permission to merge two articles.
