Using Maelstrom Mod's SuperDreadnought as basis for one-off modification via Cap Ship Factory for Capital-class ship & Titan Foundry for Dreadnought-class BUT this idea might seems quite different though...
This unique one-off mod has 4 names depending on their ship type.. SuperBattleship for Battleship, SuperDreadnought for Dreadnought, SuperCruiser for Battlecruiser and SuperCarrier for Carrier WHILE Dreadnought-class ship only have 1 name..
UltraDreadnought is all i can think of... ((feel free to suggest some good name in relation with this name even in other understandable language))..
For all 4 super-type capital one-off upgrade which can only be upgradable if that ship reaches level 8 out of proposed level 11..
Max Hull: Minimal 2500 point
Armor: Minimal 10% overall ship's armor
Max Speed: Minimal 50% increase
Turn Rate: Minimal 20% faster
Phase Charge Rate: Minimal 150% faster
--- Have back-up phase jump engine installed BUT only usable once.. then wait for 15minute for level 1 upward to 7minute for max level
--- All Super-type have Max Hull minimal BUT the rest are depending on their faction's uniqueness..
--- All Super-type ship would gain some upgrade in return for other part LIKE newly upgraded Kol Battleship removed hangar port for such facilities gain greater capabilities regarding that part and SO ON
WHILE UltraDreadnought ((Temporary naming)) can be gained after reaching level 6..
Hull Restoration Point: 100% increase
Shield Restore Rate: 100% increase
Max Antimatter Point: 500
Armor: Minimal 25% overall ship armor
Minimal 4 extra turret (depending on what is that ship specialized) including AA weapons
2 extra squadron strike craft at minimum
1 unique addition.. FOR example, Kol' Adaptive Forcefield Defensive shield which only works for itself Or spawn stationery missile battery as support firepower OR Targeting Uplink as support defensive OR even upgraded planetary cannon which allows auto-Raze Planet w/out using antimatter..
Hull, Shield & antimatter upgrade are permanent while other 3 are depending on their unique traits
There's more BUT it'll take way too much to add here... you get the gist of it