Welcome to peacetime military, where the budgets are made up and the performance doesn't matter. These things aren't built for fighting, they're not even built for functioning. They're built to enrich contractors and make heads of state feel as if they have large testicles, to look impressive when they skulk around in other people's territorial waters, and to put fear of a global superpower into third-world dirtdwellers. It's especially bad with superpowers today, as they're a small, elite club; so either they spend bags of money and actual effort on being competitive against one another, or they just agree to mostly not fight, and just piss away money building whatever - because their massive technological and industrial advantages basically guarantee that whatever they shit out is still going to seem like future space death magic to 90% of countries, ahem, "countries" out there. First thing stuff like this does in a real war is get shot to shit and then replaced with something cheaper to make and twice as effective, which then gets built by the shipment such that when the war ends, the government doesn't even know what to do with it all. What they don't scrap they sell off, so as to arm the dirtdwellers for the next decade's proxy wars. I should've been a contractor for a peacetime military. I could've welded two ordinary boats together, and built a fearsome and high tech shell around them out of styrofoam, spackle, and surplus M2s. Some superpower would buy this thing for five and a half briefcases of large bills; it would look flash when sailing around, and as it menaces with spikes of (rapid fire and loud) weaponry, third-world dirtdwellers and backwards tribals will venerate its might while flights of strategic bombers from land-based airstrips thousands of miles away pass overhead and end their civilisation.