Which is to say that the Liberty, Liberty Wingless, Independence/Home One, etc, have the same reactor, engines, etc, but built in different configurations.

I personally believe that the MC80 line refers to the Power Generation/Engineering facilities. The lack of point defense is probably a conscious design decision since it seems with all the frigates and corvettes a Rebel fleet typically has the Rebels MC Star Cruisers concentrate on heavy anti-ship armament to take on Star Destroyers since they’re the only ships the Rebels really have to fill that role, and leave anti-starfighter work to the frigates and corvettes. So really it manages to pack all of an ISD-I’s heavy armament plus torpedoes, while forgoing the ISD-I’s secondary armament and point defense, which considering its size relative to an ISD its armament makes sense.

The Profundity is just over 1200 meters and while its armament may seem underwhelming, it basically the armament of an ISD-I without the heavy quads, medium TLs, and only 1/6 the point defense but has like 12 torpedo tubes in compensation. The Profundity’s armament comes from the R1 Visual Dictionary, which has in my opinion the best technical data for an ISD-I I’ve seen.

Mon calamari cruiser model