Okay, I have a new project. I feel that a propper command ship is needed to lead my fleets, aside from a carrier, since carriers may not always be available when you need them to command a fleet, or simply unnescesary due to their maintenance costs and the cost of deploying one in the first place.
What I propose is a guided missile cruiser fitted with perhaps AEGIS equiped, unless there is a better system for mass information gathering, targeting, guidence, etc. The reason I shose the GC classification is that it gives me enough space to fit all of the computer systems, propulsion, weapon systems and provisions for deployment.
Is this reasonable? Keep in mind that like all of my ships, this is for RP use on NS, although I do not by any means intend to go overboard as some NS'ers might.
From what you've said, you want a full right and proper missile cruiser in the vein of the Albany class or the CGBL model, and not an overgrown DLG/DDG. Displacement wise you are going to start at around 12k tons and go up from there to fit both the AEGIS system, proper fleet command facilities, enough weapons to take advantage of AEGIS, and enough range to make it worth building.