I have an idea for a mod which I intend to create with an additional ship class.  I call this the Olympus Class.  These ships would be similar to the Capital ships one would imagine where they would be nearly indestructible.  These ships would have something similar to older ship styles where yes they would of course have forward cannons, but they would also specialize in broadside attacks capable of ripping a fleet to shreads.  In direct combat they would be unstopable as they are essentially a huge floating mass of guns.  These ships would also function as mobile starbases and as such they would be able to create a new type of fighters called Strike Craft.  The one weakness (so far) of these ships would be their mobility.  Directly engaging one would be suicide, but hitting it from behind could spare you.  What you would have to do is position a group of capitals behind it and tell them to continuously move to avoid it from bringing the main cannons to bear.  The reason that I say this is for balance issues.  Regardless of cost, once you had one of these in your posession, you could simply walk through heavily fortified planets to their capital and destroy it with the main cannon.  They would also have some characteristics of the capital ships in that they would also gain abilities and level up. 

These massive ships would be limited to one and only one for obvious reasons.  Another thing I was wondering about was:  where can you build such a collosus...  Well my solution is to resize the capital factory.  These ships would not directly be a new class, but they would have prerequisites and such high prices (aside from being the size of a planet..) that they may as well be a new class. 

These ships would also be requiring the research of the corresponding superweapon, as well as their own prototype.

Each would be centered around something related to that race.

TEC: battleship

Vasari: dreadnought

Advent: carrier

But anyways, here are some of their stats:

Trinity Blade

Forward guns: Prime Cannon, 9 StS Missile Launchers, two torpedo tubes, 12 autocannons, two uber heavy laser cannons

Both Sides: 7 very heavy laser batteries (150 per shot)

Abilities

Glory: boosts the shield regeneration and cooldown for a short period of time. 

Thor Torpedoes: essentially a combo of ion bolt and missile barrage.  It fires two huge torpedoes at the target.  IF its not destroyed outright, it will have its abilities, weapons, and engines deactivated, and will also be nucleararily contaminated.

Return Fire: for about a minute, all recieved damage is reverted also sent to the target, and by level three, it actually doubles the damage given.

Prime Cannon:  Available at level six, this unlocks the full power of the Trinity Blade.  It is similar to Cleansing Brilliance.  Every Passing second, it deals 1500 damage to the target, and anything in between.   The beam has a duration of 15 seconds.  This uses 1000 antimatter, and disables all systems after firing for 20 seconds, as well as its engines.

Judgement

Starboard: four beam cannons

Port: one beam cannon, 7 plasma cannons

Abilities

Onrush: sends forth a large group of strikecraft to deal damage for a short time

Prominence: A large plasma wave shoots off the star and into the target, dealing heavy damage and disabilizing it for awhile

Heavy Drones: slightly increases the power of the combat drones

Mass Conversion: Essentially a more powerful version of domination.  It CAN take control of capital ships (I have yet to prevent it from getting the other Olympus ships though...)

Norgul Genocide

Forward: six phase missile banks, three pulse beam projectors

Both Sides: eigth plasma wave cannons

Abilities

 Evacuation: Increases rate of movement for the ship by massive amounts and decreases the charge time for jumping

Colonize: Max population infrastructure instantly

Destroy Shields: Instantly destroy the shields for all the ships in an area

Genocide: Kills everyone on the planet in one fell swoop, increases your culture, and also sets planet health to 0.

Completion Guide:

Trinity Blade design: yes/Trinity Blade modeling: yes/Trinity Blade Texturing: no/Trinity Blade .entity: WiP

Judgement design: yes/Judmement modeling: yes/Judgement Texturing: yes/Judgement .entity: WiP

Norgul Genocide design: yes/Norgul Genocide modeling: no/Norgul texturing: no/Norgul .entity: WiP

Final Editing: no/Bug Checks:no/Release:no

Progress (based on completion): 33%

 due to some issues, this is now incorrect...