Here's something I cooked up with a little help from Kryo's Hull System mod. Like all of my designes, it's not actually playable in the game, having no weapons, engines, or other components:
The Shruiken-Class Deep-Space Support facility is arguably the single most powerful space station ever developed by the Pan-Human Conglomerate: supporting well over a million troops and crew members, the Shruiken serves as a complete, self-sustaining military headquarters for every Conglomerate activity within an entire sector. Due in large part to the station's complete immobility and exorbinate cost, only three have ever been constructed: one between Alpha Centauri and Sol (in the geometric center of Conglomerate space), one at the triple border intersection point between the Arbiter, Human, and Oldinath spheres of influence, and one within the Farworld colony cluster.
The station is divided into four distinct levels, each with a specific tactical purpose:
- Support level: This facility houses the life-support systems, antimatter reactor, and assorted mechanical systems needed to support the entire complex. Although the systems contained within are highly redundant, security is tight and automation is heavy: only a few engineers and technicians live or work here.
- Logistics level: The main body of the Shruiken is dedicated to supporting and maintaining the vast fleets and recolonization efforts of a busy combat zone. 32 small hangars are capable of holding up to 64000 Nalex-class fightercraft, while the 16 larger bays can each recieve ships as large as Python-class. Barracks facilities can house 75,000 troops indefinately, and the logistics level possesses a full complment of R/D labs, medical areas, and recreational facilities.
- Operations Level: The Ops level is responsible for manageing the day-to-day operations of the Shruiken. It provides residential facilities for scientists, civillians, and higher-ranking officers, as well as information-handling systems such as master control rooms and the main AI processor core.
- Command level: the command level of the station is dedicated to managing an entire sector's worth of Terran operations: comprised entirely of control areas and administrative facilities: all personnel live lower down in the operations areas, and the level is highly secure. A complete electromagnetic, dimensional/phase, and quantum-entanglement communications array enables the command staff to transmit orders and recive intelligence instantly from across the galaxy.