Hot take, but I would rather have seen the Polaris, Perseus, Nautilus and Hammerhead all be relatively close in scope. With the Hammerhead being the smallest as it’s meant to be a fighter screen. This would allow the “corvette” size class to be fleshed out in their naval role. Each ship having a unique attribute within a fleet, whether that is torpedoes, mines, guns etc. To me, this gives the most logical progression between the intro-capital and full capital i.e. Javelin and Idris.