[Event] Death of an empire

Hannizio

After growing careless because of a streak of victories, the HDC loses nearly all its ships in a decisive loss.
More information here: https://forum.cosmoteer.net/d/13675-the-final-days-of-war

Now the alien invaders are at the door, and the only way of survival is to hope on help of other factions that have been in contact with the HDC for a while.

There are only 2 Dreadnoughts, one modern and one outdated in orbit. They are protected by dozens of cruisers and even more frigates. There is no orbital defense system or ground based defense.

Goal: Hold the capital planet of the HDC, with whatever it takes

Notes on the event:
I will play as the Aliens, and the HDC
There is no limit to fleet size, but be reasonable.
This event will be no victory

Rewards: Remaining ships of the HDC fleet (If they exist)

boombox

Hannizio

Somewhere deep inside desolated space the stars shone brightly, sending their light to far off galaxies... But a keen eye would spot a moving shadow through those stars, with the light of some being covered before reappearing shortly after again.
As a planet moved out of the line of a different star, slowly a battle fleet appeared, the light of the stars glancing off their dark black and red hulls, slowly lurking along..
Looking closely one would be able to count fifteen ships, one of which being a heavy cruiser, accompanied by two light cruisers, five heavy and seven light destroyers. The heavy cruisers bridge was eerily quiet as the men on their battlestations silently watched their screens, working.
On the front of the bridge stood a man flanked by two others. The man, his insignias showing him to be the admiral of this small fleet, watched the stars in silence while the two officers behind him stood at attention. Without looking at them, he began speaking.
"Unsere Mission ist es, der sogenannten "Menschlichen Verteidigungskooperation" Unterstützung zu liefern. Als Menschen ist es unser Recht und unsere Pflicht, andere Menschen vor außerirdischer, abscheulicher Bedrohung zu schützen, und mit jedem getöteten Xeno werden wir diesem Endsieg näher kommen."
... he pauses for a second.
"Wir treffen uns auf dem Weg mit dem schweren Kreuzer Albert Obernstett, kommandiert von Kapitän Ulrich von Plauzhausen, und bewegen die Flotte dann zu der Heimatwelt der Menschlichen Verteidigungskooperation.
Bereitmachen zum Sprung!"
The two officers saluted and with a sharp "Jawohl!" and a clicking of the heels they turned around and marched out if sight as the navigation officers on the bridge calculated their new target while communications officers relayed the information to the surrounding fleet.
*Shortly after, the fleet slowly turned to their new target and jumped.

The Homeworld of the HDC, a fair distance away from orbit.

In rapid succession, one after another, a fleet of sixteen ships appeared, now strengthened by a second heavy cruiser, and slowed to a lower speed, heading for the homeworld.
A message was formulated and sent out towards the HDC world:

//Transmission: Local Code//
"Zhis is Kampfgruppe Seelöwe from zhe German Space Regime, commanded by Admiral Paul Richter. Ve are here to provide relief and defensive support against zhe alien threat. Show us vhere you need zhe extermination."
//Transmission End//

Brank

"-...HDC homeworld is under assault by an unknown invasion force, being an ally of ours with a mutual defense pact, we have sent this fleet, 'Shield fleet', to their aid. As you know, the fleet totals out to 16 ships, the flagship being the IDS Valorous, a Diamond-Class Cruiser, escorted by 2 Platinum Classes and 2 Esperienza Classes. This does not include various logistics vessels. The rest of the fleet is comprised of 4 Gynos Heavy Destroyers and various escorting frigates and destroyers. Alongside this primary fleet is an Artillery battlegroup, comprising of Two Javelin Classes, 3 Longbow Classes, and 5 Pilum classes. Accompanying the Artillery group is a couple small unarmed Seer-class recon ships. That is all, Shield. Fleet Admiral out."

The hologram of the Fleet Admiral dissipates, as Captain Josh Crilo begins ordering around his crew. Within moments the hyperdrives on the fleet go off as Shield Fleet and it's escort begin their route to the HDC homeworld...

1 week later...

The Fleet exits hyperspace, dropping with a thud into the HDC home system as they open up comms with haste.

//ID Hailing HDC Homeworld//
"Greetings, this is Shield Fleet of the Infinite Dominion, we have arrived to your aid as quick as our hyperdrives allowed us. We have brought a defensive Artillery battlegroup alongside the main fleet. If you would kindly inform us where we are needed, we can move our fleet to the desired location."

Hannizio

Brank The minister of defense answers:
"We are thankful for your help. It is only a matter of days till the aliens hit us with full force. A support of our defensive ring above the capital would be of great help. You know your ships better, therefor you should think about the best strategy for them. Our ships can withstand much, but lack in firepower and flexibility. We don't know the direction of the attack yet, but they have all possible data about us, while we have next to nothing. We can provide all kinds of supply if needed"

Hannizio

boombox I
"It would be good to have our back covered. Stay on the opposite side of the planet to make sure they wont attack the back. If you need anything from the planet, feel free to ask for it."

Brank

Hannizio

"Rodger that. We have out own supply lines as of current."

The Fleet begins to move, finding a way to patch up the defenses by moving ships and artillery around to holes in the defense network.

boombox

Hannizio
//Transmission: Local Code//
"Understood. Ve are fully self-reliant, use your resources to supply your own men. Ve vill set up a temporary listening post as one of our ships is equipped vith long-range scanners. If anyzhing closes in ve should know about it at least an hour or two before zhey arrive."
//Transmission End//

The ships move to the far side of the planet and hold position there, with the long range scanners of the first heavy cruiser observing the surrounding space.

Hannizio

boombox "Very well, thank you for your help. We don't need any more supply. We have everything we could gather here, maybe even a little surprise..."

ZendikaroftheWest

Two Zoelguut-class dreadnoughts, seven Haizerad-class battleships, twelve Meltoria-class battlecruisers, twenty-four Destoria-class heavy cruisers, thirty Kelkaptia-class light cruisers, forty Kripteria-class destroyers, three Gelvades-class battlecarriers, and fourteen Polemeria III class defence carriers arrive in the system. They immediately broadcast a message to the homeworld, revealing themselves to be the 8th fleet, on a mission to assist the HDC.

Hannizio

ZendikaroftheWest "We didn't expect someone to come at all, but with so much help? We are very thankful, but I fear we cant waste time chatting. Get ready and in battle position as soon as possible."

ZendikaroftheWest

Hannizio
"Got it, any place you want us to guard specifically?"

Hannizio

ZendikaroftheWest "Wherever you think it is the best. The capital has to stay safe, but we already have something on its way to do that."

ZendikaroftheWest

Hannizio
"Of course. We will, however, give you the twelve battlecruisers, for use as you see fit. Note however, that they are fast enough that they can keep pace with frigates and destroyers, and should be used accordingly."
The mentioned ships move toward the main group of HDC ships, while the rest of the fleet moves into position. About half of the destroyers are positioned as a early warning screen (About 100km out from the HDC fleet above the capital), the defence carriers are about 1km out from the fleet, ventral lasers turned outward from the planet. The rest of the fleet splits into two parts .(even split, one getting one more carrier, the other getting one more battleship) The command battleship Chronos moves above the capital, making it's stand there.

Hannizio

A bright blink can be seen on the horizon, only a few hundreds of kilometers away from the planet. What might seem like the first wave of enemies attacking, turns out to be a giant starbase. It wields lots of experimental weapons, but has light armor for a construct of its size. A dozen cruisers fly towards it to bring it safely closer.
The minister of defense proudly states to all who arrived: "As you can see, we have brought our finest piece of equipment. This station, 7 kilometers in diameter, was designed to test new weapons, but we were able to equip it with a hyperdrive, being capable enough to transfer a station of this size. With war machinery like this, we can't lose. It relies on an engine specially deigned to hold it above a planet for a long time, without needing much speed to stay in orbit. It will stop every enemy from even trying to break the lines. It has many weapons, of various kinds, but they aren't optimized for battlefield use yet."
The station starts to hover nearly over the capital, staying close above the atmosphere

Hannizio

ZendikaroftheWest
The faster ships are ordered to stay in cover of the starbase until the first salvos are fired

ZendikaroftheWest

Hannizio
"Also, could we organise a conference for the defenders? We need a strategy if we are going to defeat these aliens."

Hannizio

ZendikaroftheWest
"Indeed, that would be wise. I would rather coordinate in person, since the attackers know which frequencies we normally use. We will meet in the presidentially palace. Here are the coordinates."

boombox

Hannizio
//Transmission: Local Code//
"Agreed. Ve vill send down a shuttle to zhe planet to meet up vith you in zhe palace."

A singular shuttle is dispatched shortly after, racing down to the planet, breaking through the atmosphere and passing over the cities with a screaming sound of the motors. As it touches down, its doors open, forming a ramp, from which several men and women embark, at first glance they look completely normal if a tad bit more muscular, until one gets closer to the shuttle... The officers dwarf normal humans, all of them standing between around 2.6-2-8 metres tall.

ZendikaroftheWest

Hannizio
A shuttle heads down to the coordinates and lands. Out steps five people. The first is a Zaltzi Fleet Admiral, the next is a Gamilas Admiral, and the last three are Zaltzi staff.
"Hello, we are here for the conference. My name is Fleet Admiral Kiani."

Hannizio

boombox
The minister of defense is visible impressed by the size of those humans.
"You aren't some sort of aliens, are you?"
He asks in a voice that sounds nearly threatening

boombox

Hannizio

As the ten men and women step down the landing ramp, their heavy march can be heard, they stop shortly before the minister of defense, one man standing slightly in front of the others, flanked by two other men, the rest seem to be an armoured guard.

The man in the front looks to be about 50 years old, is clean shaven with a large scar across his right chin. On his right stands an older man, with a white sailor's beard and an eye patch, and on his left a young woman, looking to be about 30 or so, standing at attention straight as a die. The three bear the insignias marking the former man as an admiral and the other two as captains.

The admiral looks to the prime minister, and begins speaking, his voice is louder and deeper than expected, even though he is speaking calmly.

"Nein, Ve are not aliens, our ...genome of humanity stems directly from earth, from vhich ve vere forced to leave a very long time ago. To better adapt to zhe harshness of zhis galaxy and help humanity thrive and exterminate zhe xeno threat ve used biological upgrading to strengthen our bodies."

Extending his hand for a handshake he nods slightly.
"Admiral Paul Richter, accompanied by Kapitän Ulrich von Plauzhausen und Kapitänin Sarah von Richthofen, from zhe German Space Regime.
...
It is our duty and our right as humanity to exterminate zhe xenos and rule zhe stars. Ve will be of service defending your world."

The guard soldiers salute sharply as he speaks the last words.

Hannizio

boombox
"I like this rather interesting. You have to show us your way of genetic modification once we won. If you would be so kind to follow me in."
The minister goes into the building, and after a short corridor, leads everyone into a big and beautiful hall. The Bigger humans have to duck to not hit the ceiling with their head, but once in the hall, even they can stand upwards. The ceiling is a few meters above the ground. The incoming storm can be barely witnessed through the windows. The temperature is warm, plants stand next to some pillars. The architecture of the room was inspired by multiple designs from the human past. Its general look could be described as if in an old theater for the upper class