I know this has already been discussed in other posts but I thought with the Devs now working on 1.1 I thought I would start another one that could be adressed in 1.1 or maybe the expansion. So here It goes.
1. Bottom line cap ships are weak. Cap ships should be the epitomy of your empires technology but they require no research unlike cruisers. Cap ships can get destroyed if you try taking on big pirate bases and battles just dont seem epic. Yes I know there are Mods to adress this, I personally use Real Capital Ships 1.03 by Grottenolm85, but i would rather use the Sins plus mod.
2. The range in cap ships is not enough. There should be more realalistic differances. Sluggish Battle Ships duke it out with fast battle cruisers chasing down fleeing ships and destroyers cruising through the battle attacking frigates. This would make big battles more interesting small fleet battles early on are usualy just maches of concentrating fire on a given cap ship, But this would improve medium to large fleet battles.
3. A scout ship should not be able to take so many hits from my big Cap ship it doesnt make sense and that goes for all light frigates. Basically Cap ships just have weapons that you can find on frigates. Cap ships should have more unique hard hitting weapons.
4. An easy way of adressing power problems would be making cap ships twice as powerful for twice the cost. Cap ships are cheap in big long games and you can replace them with relative easy. If you make cap ships more valuable and powerful you become more attached to it especially if leveling increases its power by more.
5. You should be able to research powerful upgrades which would improve armor, firepower, and speed more dramatically. You would then have to buy these upgrades for for individual ships meaning you can invest more money in the ship.
6. I think number 5 answers peoples cries for a super capital ship as you could invest tons of money in one cap ship. this would add a new interesting strategy to the game. Some people may want to go for quantity and others quality