How can it be combined arms if you're dropping an entire ship class??? Ton for Ton, the Light Cruisers are more cost effective than the Escorts, at least until we pick up the Defiant. That said, Escorts allow for greater dispersion of our Armament. Hence... Combined Arms. While the Feds like their Heavy Cruisers, we're also the Tech Guys, which means that Combined Arms certainly works in our favour.
You're just quibbling about the name. The point was to push fleet composition to various extremes and see what that looks like. Why don't you write one for what you consider a true Combined Arms and we can compare?
That was kind of my idea, to provide a template and three examples and have people start creating their own 2312 plans.
Ok, looking at the stats, what is up the Constellation and Centaur? The Centaur is bigger, heavier, newer, and more expensive. It's also flatly worse statwise.
The Centaur requires less crew and you can build them quicker. If we were trying to build up forces as quickly as possible for an anticipated war and money was no object, that's where you'd go.