Same old
My problem with a lot of military science fiction is the illogic in the military, science and fiction parts.
The navy that only fields super ships that are relatively easy to destroy makes no sense to anyone, I hope. The job of screening ships, is to extend the life of the heavy hitters from cheap close in attacks delivered by enemy attack craft, stealth craft, and others. You can't hold a system with no ships, no fortresses and no planetary space defense installations.
The destroyers, frigates and corvettes are tasked with that close in defensive role but unopposed a group of them could be a lot more dangerous than a small group of attack craft. It makes a lot more sense to have a battleship that can swat the other guys super carriers while the battleship itself is screened by destroyers, frigates and corvettes. Your own single function carriers can be far behind the battleline (protected by more of those destroyers, frigates and corvettes) launching and retrieving attack craft to help defend the big hitters and hitting the super carriers of the other side.. That would be ever so much more fun.
If on the other hand, you are stuck with your energy mounts, missiles, etc. on the same ship that is trying to launch and arm and repair and retrieve attack craft, that doesn't seem like it would be nearly as much fun. The single function carrier would have the advantage of carrying a much larger and wider variety of attack craft. I didn't figure any of that out just now. That's pretty much current aircraft carrier doctrine and practise in all surface fleets in a nutshell.
If you copy current surface fleet ship types, then copy their use, nomenclature and armaments. It's not rocket science. It's kind of hard to scout enemy systems when all you've got to work with are aircraft carriers. It's kind of hard to hold systems when you field so few ships that they can't cover all the vulnerable systems with at least one ship (which is kind of dumb).
The above makes all the naval action in the series silly. It's a poorly understood representation of modern carrier warfare. When the action is silly, the characters are going to be stereotypes on the better pages. The cocky but undisciplined, fighter jock is the first. The tough CAG, who alone of all naval officers understands the fighter jocks. The admiral who doesn't command a force but fights his own ship with grit, determination and canny. Everyone else is the scenery. Ground forces are irrelevant and fortresses are unheard of.
I think that covered all the characters, their attitudes and warfighting understanding. Now you can jump to the last chapter and read about the brilliant victory by the good guys over the bad guys and mourn the four fighter pilots who died in the titanic battle.
Some people like that and this series delivers it. If the illogic and weak characters seem less than real it's because they are. In that case, try the Honor Harrington series.