The voice from the comms was so clear.
It reached everyone's ears.
Like a glimmer of hope emerging from despair.
Like a ray of light appearing in the darkness.
The admiral's face showed an expression of disbelief, his whole body trembling slightly because of that voice.
"The Primarch has arrived?" he looked at the tech-priest beside him, his tone filled with confusion and unease.
He was somewhat worried that the voice he just heard was fake, a hallucination caused by the immense pressure he was under.
"It should be. The Primarch's fleet was hidden by the warp shadow, so we didn't receive any information," the tech-priest said. "Inject energy into the augur arrays, attempt to establish communication, and request support."
"Understood," the Intelligence Officer shouted.
A hint of joy appeared on the faces of the despairing crew.
Their persistence had paid off; the Primarch was coming, and victory would surely belong to humanity.
The spatial structure of the void twisted and trembled wildly, finally tearing open a rift.
The prominent golden double-headed eagle symbol on the bow of Macragge's Glory shone brightly.
The invincible fleet followed closely, surging out of the rift.
The ethereal light transformed into tentacles, reluctantly watching the human fleet depart from the warp.
Magnificent engines of war, propelled by plasma engines and gravitic drives, made their appearance.
Unprecedented colossal structures towing massive cannons arrived, showcasing the unstoppable might of humanity.
The appearance of Macragge's Glory and the Imperial invincible fleet caused all the survivors to cheer.
Just like a ray of light piercing the endless darkness, it gave people boundless hope.
The tyranids were caught off guard by the sudden arrival of reinforcements.
Accompanied by countless torpedoes and laser beams, swathes of tyranid ships were shattered.
Macragge's Glory led the charge, its massive bow gun roaring, the vibrations echoing throughout the entire hull.
Giant beams of light and macro cannons tore apart the bio-ships blocking their path.
Numerous battleships and engines of war followed closely, unleashing colossal beams of destruction and a rain of torpedoes and missiles.
The mighty and awe-inspiring invincible fleet, like an unstoppable iron fist, struck with a single blow that no force could withstand.
The tyranid swarm was clearly in disarray.
It was directly broken up by the Imperial fleet that had emerged from the warp.
Large numbers of Hive Fleet warships attempted to turn and form new tactics to counter the Imperial raid.
However, their efforts were in vain.
They were facing an invincible fleet controlled by a god of war.
They were facing the most outstanding son under the Emperor's command, the sacred Thirteenth Primarch, the redeemer of the Imperium, the savior of humanity, the sole King of Ultramar, the invincible and unconquerable god of war - Guilliman.
Countless orders were issued in an instant; Guilliman controlled every detail of the battlefield, dictating the tempo of both friend and foe.
He forced the Hive Mind to dance to his rhythm, leading them towards the abyss of death.
He freely employed the war theories of the other Primarchs.
The savage hunt of the Space Wolves, the tenacious defense of the Imperial Fists, the cunning disruption of the Alpha Legion, the iron fist firepower of the Iron warriors, the mobile cutting of the White Scars.
Whether loyalist or traitor, Guilliman was unconcerned, blending these theories to forge the Guilliman Doctrine.
On a single battlefield, tactics in the style of several Primarchs simultaneously appeared.
Throughout the entire galaxy, perhaps only Guilliman could accomplish this.
The tyranids were utterly routed.
Guilliman was like a master calligrapher, freely using any brushstroke in the world to depict the work of art in his heart.
The Retribution-class Grand Cruisers also made their appearance at this time.
The Retribution-class Grand Cruiser that had been damaged by the disruption of the star's gravity was repaired and sent into the battlefield.
In addition, there were new Retribution-class Grand Cruisers from Macragge.
Their performance was superior to the two that had first entered the battlefield, and their cooling and power supply systems were also more complete.
The components and programs were also optimized based on previous combat data.
Large numbers of radical tech-priests came from all over the galaxy and joined Guilliman and Cawl's insane plan.
They brought more technology, more people, and more resources.
The Retribution-class Grand Cruisers were also further perfected, and the power lines and gravitic arrays of the star-killing cannons were more logically arranged.
This was a symbol of human might, the pinnacle of human warfare.
With Guilliman's order to attack.
Four Retribution-class Grand Cruisers simultaneously unleashed their star-killing beams.
The massive beams were brilliant and bright, instantly piercing through the entire dark void of the universe.
As the beams swept across, all bio-ships they touched were reduced to dust or exploded.
The Hive Fleet was vast in number, but the Imperial fleet's firepower was equally terrifying, coupled with Guilliman's superb command skills.
The Hive Fleet was no match at all, being pushed back step by step, and was cut into pieces by the charging fleet.
The scattered counterattacks of the tyranid ships were easily crushed by the powerful firepower of the heavily shielded Imperial vessels.
Imperial lances ignited flames on the organic hulls of the bio-ships.
And the Imperial fighter squadrons gathered together, sweeping through and tearing apart the tyranid ships that had been weakened by firepower.
Within half a day, the tyranids paid the heaviest price.
Vast numbers of bio-ships became charred husks slowly disintegrating and tearing apart in the void.
The reversal of the battlefield situation was so swift.
Any tyranid counterattack was tantamount to self-destruction and suicide.
A massive Hive Ship attempted to disengage from the battlefield, but was firmly held back by the Retribution-class Grand Cruisers' gravitic containment devices, and was finally destroyed by the Imperial fleet's concentrated fire.
The hundreds-of-kilometer-long bio-mothership disintegrated under the fierce bombardment, large amounts of charred debris slowly broke apart in the void, and swathes of tyranids were thrown out, becoming cold corpses.
The remaining tyranid ships were no longer a threat.
The Imperial fleet would pursue them relentlessly until they were annihilated.
But the war was not over; the tyranids on the surface still needed to be dealt with.
Guilliman ordered his Honour Guard and Chapter warriors to prepare.
A total of over forty thousand primaris space marines and a vast, multi-million-strong force of Astra Militarum regiments, as well as ready-to-deploy Titan Legions, would be drop-podded or teleported to the surface.
"Victory shall belong to humanity; any enemy that offends humanity shall pay the heaviest price for it."
Guilliman issued a declaration of war over the comms.
Causing all the units to roar with excitement.
They were filled with fighting spirit, ready to meet their final battle in the Charadon Sector.
After this battle, there would be no more xenos threat in the Charadon Sector.
In the Hive City.
Calgar was in the cathedral, kneeling on one knee before the statues of Guilliman and the Emperor, offering his final respects.
Apologizing for his failure to complete the mission.
Then, he stood up and walked out.
Outside the cathedral, numerous Primaris warriors had been waiting for a long time.
Their armor had lost its original color, smeared with the bodily fluids and blood of the tyranids, and its original hue was no longer discernible.
"We shall never retreat," Calgar shouted. "May we all return under the Throne, not failing Guilliman's wish."
Tears streamed down his face.
This would be a fight to the death.
He should have assisted Guilliman in completing the heavy task of saving humanity.
But now, his final song had begun.
Calgar was prepared to die.
His only concern was his genetic father; who would replace him to assist his genetic father?
The Primarch would bear the burden of saving the entire Imperium and race alone.
Fighting against terrifying xenos and Chaos.
He also needed to contend with the Imperial nobles who were unwilling to cooperate with his reforms.
The Primarch had so many enemies, and so few helpers.
Calgar prayed that after his departure, someone would come to help his genetic father.
Sleeping or departed Primarchs, or those sufficiently powerful Imperial heroes.
"Whoever it is, please don't let him fight alone," Calgar prayed.
Then, he activated his weapon and stepped onto the battlefield.
The other warriors followed closely.
Tyranid beasts were also rampaging throughout the core areas still controlled by the Imperium.
Those terrifying creatures howled, emitting frenzied sounds.
Calgar and his last guard joined the battle, power fists swinging, smashing the heads of those tyranid creatures.
He grabbed a tyranid Psyker and then repeatedly smashed its body with his power fist.
The tyranid creature's tentacles curled up and wrapped around Calgar's leg.
But Calgar tore them apart with a single pull.
Then, the power fist smashed the tyranid's head.
Its heavy body collapsed in the ruins.
The victorious Calgar let out an enraged roar.
Like a maddened lion.
He ran through the burning ruins and wreckage, fighting with abandon.
The artillery controlled by the mortals still boomed, and the ground shook.
They were still desperately fighting against the tyranids flooding into the final positions.
Shouting various slogans, they sought mutual destruction with the tyranids.
The sounds of fighting, weeping, explosions, lasers slicing through the air, and pained wails all mixed together, echoing across the battlefield.
Calgar and numerous primaris space marines fought at various points along the front line.
The Heart of Guilliman gave them endless strength.
Making them like tireless gods of war.
The tide of tyranids surged forward, but Calgar was fearless; he fought back fiercely, tearing apart every monster.
A mysterious power was enhancing him.
Calgar's strength was increasing, and his fighting became even more frenzied.
He ignored the dark matter engine's alert sounds in his ears.
He was awakening in the slaughter, only feeling his strength was boundless, completely unaware that he had activated the gift bestowed by his genetic father.
Other warriors also activated their dark matter engines; their flesh and blood bodies were rapidly enhanced, their aura becoming more terrifying, like savage beasts from a primitive era, appearing in this age with a terrifying wildness and instinct for slaughter.
However, humanity was inevitably heading towards defeat.
There were too many tyranids, overwhelming, everywhere.
Calgar's guard members were becoming fewer and fewer.
Calgar, possessing endless strength and regeneration, was also overwhelmed by countless tyranids.
His armor was in tatters.
But his flesh and blood body continued to heal and repair itself amidst the frenzied attacks.
The dark matter engine was drawing upon hidden power, yet everything is balanced.
The power to repair his body could not appear out of nowhere.
Calgar was inevitably becoming weaker.
Amidst the countless assaults, his eyes gradually became hazy, his consciousness slowly faded, and everything became blurred.
He fought frantically, slowly becoming exhausted, and finally was beaten to the ground.
"I am about to die," a thought surfaced in Calgar's mind.
The warriors around him did not grieve at his fall, but instead let out cheers.
Did they hate me?
Are they happy about my death?
Calgar didn't know why they were cheering.
His brain was shutting down, his ability to think slowly disappearing step by step.
A golden realm appeared before his eyes.
Perhaps his soul was returning to the Emperor's world.
His service would end in death, and he would welcome an eternal end.
Calgar slowly closed his eyes, embracing the golden light.
However, a firm and powerful voice pulled him back from that realm, returning his soul to his suffering body.
"Calgar, I am here, hold on."
Calgar struggled to open his eyes, and what came into view was a pair of azure power armor and a noble, resolute face that, upon first sight, would inspire infinite loyalty and devotion.