Meanwhile, deep within Umbrella's underground laboratory, the situation had devolved into pure horror. Countless researchers lay dead—some with gunshot wounds, others mauled by bite marks, and a few split cleanly in half from the waist up as if carved by a massive blade.
A lone researcher hid under a desk, trembling uncontrollably as he prayed for his life, still shaken by the carnage he had just witnessed. What exactly happened here? Of course, the source of this nightmare was the virus leak deliberately caused by Dr. William himself. He had released multiple bio-weapons, letting them run wild through the facility as a distraction for his escape.
"P-Please don't kill me… NOOO—PLEASE—AHHHH!!"
His cries were cut short as a Hunter lunged out of the darkness, tearing through him with the sickening crunch of snapping bone. After devouring its victim, the creature skittered off, eager to hunt down its next prey.
But suddenly—
Bang! ... Bang! ... Bang! ... BOOOOM!
Gunfire and the sharp crack of a grenade echoed through the corridor.
Umbrella's USS Alpha Team had arrived.
These black-ops soldiers—mercenaries loyal only to Umbrella—moved with clinical precision as they swept through the contaminated wing. Their leader was the man known only by his code name: HUNK (Human Unit Never Killed). Their mission: secure the G-Serum and retrieve Dr. William by force.
Soon enough, they clashed with the special forces unit deployed by the Federation. The firefight was brutal and short-lived; Umbrella's elite overwhelmed their opponents easily. Within less than five minutes, the Federation forces were forced into retreat, leaving several of their own behind as casualties.
"Base, this is HUNK. We're encountering some complications down here," HUNK reported through his radio, his tone as calm as ever. "Dr. William seems to have deliberately released multiple bio-weapons. We've also run into Federation troops trying to reach him first."
"Understood," Sergei replied. "I'll dispatch additional support to your position."
Not long after, the surviving Federation soldiers staggered toward a nearby elevator—
Ding.
The doors slid open.
A towering figure, nearly three meters tall and clad in a black coat, stepped out. Without hesitation, it lunged forward, its massive hand clamping around a soldier's head.
"AHHHH! H-HELP ME!" the man screamed, firing wildly in panic.
His bullets bounced off uselessly, and a second later, his skull was crushed like a rotten fruit, his body dropping lifelessly to the floor.
"Shit—what the hell is that?!" the captain shouted.
"Open fire!" he ordered, raising his rifle as the giant advanced.
It didn't matter.
The first Federation team was wiped out in moments—slaughtered mercilessly by the Tyrant.
Meanwhile, Rachel observed the carnage through her surveillance feed. She exhaled sharply.
"Well… good thing I didn't deploy on-site," she muttered, gently rubbing her stomach—already showing signs of Allen's child. "I should probably request maternity leave from Morgan soon."
She redirected the second and third teams to alternate routes; the primary path was now compromised by Umbrella forces and their bio-weapon—the Tyrant.
Meanwhile, the USS Alpha Team pushed forward toward William's location.
Even though he had unleashed multiple Hunter units to slow them down, the creatures were dispatched with ruthless efficiency.
And just like fate always intended, Dr. William's destiny would not change.
And after the USS team arrived at the reinforced door leading into William's private laboratory, they halted as one. The metallic corridor hummed with the low drone of emergency power, bathing the strike team in a red pulse of warning lights. HUNK silently raised his fist—the signal to pause—and the entire squad froze, their breathing steady beneath their gas masks.
With a swipe of his special ID card, the heavy magnetic locks unlatched with a hiss. The door slid open.
The moment they entered, the muzzle lights of their rifles illuminated the cluttered lab: shattered glass tubes, scattered research notes, and half-finished equipment littered the room. In the far corner, Dr. William Birkin stood hunched over his desk, his hand suspiciously close to the drawer.
HUNK spoke first, his voice calm yet commanding.
"Dr. William, please cease your resistance. We can guarantee your safety. The company is offering you one more chance to reconsider your actions. You will not be treated poorly."
Despite HUNK's composed tone, the rest of the squad stayed fully alert, rifles trained on Birkin. Not a single barrel wavered. They knew what the man was capable of—and what he was hiding.
William let out a bitter, almost hysterical laugh.
"Not treat me poorly, huh… You expect me to believe that? All you want is my G-Serum. My masterpiece! My life's work!" His eyes widened, filled with desperation. "I won't let Umbrella take it!"
His hand darted toward the pistol lying on the desk.
USS Alpha acted first.
Bang!..Bang!..Bang!..
Three controlled bursts echoing through the lab.
William staggered, collapsing against the metal floor as blood spread beneath him.
"Hold your fire!" HUNK ordered instantly, and the team lowered their rifles in unison. He approached the fallen scientist carefully, checking for any sign of life.
For a few seconds, HUNK simply stared at the lifeless form, then exhaled through his mask with the slightest shake of his head.
The sub-objective—secure William Birkin alive—was a failure.
But the primary mission remained.
"Focus on the package," HUNK said as he turned away from the corpse.
The squad moved quickly, sweeping the room. On a nearby table was the black case William had been clutching when they entered. Inside were the vials—G-Serum, the upgraded T-Virus strain, and the antivirus—all intact, each glowing faintly under the lab's lights.
HUNK clicked on his communicator.
"Base, this is HUNK. We've secured the G-Serum, the upgraded T-Virus, and the antivirus. All samples are intact."
"What about William?" Sergei's voice crackled through the comms.
"William is dead. He resisted capture."
There was a brief pause—cold, calculating.
"Leave the body. Proceed to Umbrella Memorial Hospital. I've arranged a helicopter for immediate extraction," Sergei instructed.
"Understood," HUNK replied.
He turned toward the squad. "We're pulling out. Move."
The team instantly regrouped, forming a protective formation around HUNK as they exited the lab. The sound of their boots echoed through the corridor, leaving behind the flickering lights, the scattered papers…
Dr. William—who the team had assumed to be dead and left behind—suddenly twitched. A weak breath rattled out of his lungs as his fingers scraped against the blood-slick floor. Against all odds, he was still alive. Barely.
With a trembling, almost instinctive desperation, he dragged himself across the floor toward a small injector device he had prepared earlier—one containing a concentrated sample of the G-Virus. His blood left a smeared trail behind him as he crawled, inch by inch, driven purely by obsession and the fear of losing his life's work.
His hand finally closed around the injector.
With the last of his strength, William jammed the device into his chest and pressed the trigger.
Hissss.
The serum flooded into his veins, and his body convulsed violently before collapsing again. For a moment, everything fell silent, as if the lab itself was holding its breath.
Then something began to change.
The bullet wounds across his torso knit themselves closed. Torn muscle reformed. Bone cracked, shifted, and restructured. His skin pulsed as something monstrous pushed its way forward from within.
Twenty minutes passed.
And then—
William's eyes snapped open.
He rose slowly, shakily, no longer fully human. Half of his body had already transformed—muscle bulging grotesquely, bone plates forming armor-like ridges, one arm mutating into a massive claw. His breathing was now a guttural snarl.
"Umbrella…" William growled, the word warped by rage and mutation. "Umbrella!"
His roar shook the room, filled with pure hatred and the overwhelming instinct to destroy everything that had been taken from him.
Without hesitation, the newly reborn G-Birkin stormed out of the laboratory, smashing aside equipment as he forced his way through the ruined doors. There was only one thing on his mind now:
Hunt down the USS Alpha team.
And reclaim the G-Virus they had stolen from him.
And sure enough, moments later, William—now fully consumed by his pursuit of the USS Alpha Team—caught up with them in the sprawling sewer tunnels beneath the facility. The echoes of battle filled the dark, foul-smelling corridors.
Bang! Bang! Bang!
Gunfire exploded through the chamber, mixed with the sickening crunch of breaking bones and the wet thud of bodies being torn apart.
"Umbreeeellaaaa!" William roared, hurling himself at the squad with primal fury.
His appearance was grotesque. Half of his body had mutated beyond recognition—skin stretched over bulging, pulsating muscle, bone protruding like armor plates, and a massive, unblinking eye had formed on his twisted right arm. The sewer lights flickered across his warped form, making him look even more monstrous.
BOOM!
A grenade detonated at his feet, sending up a spray of blood, filth, and shards of concrete.
"AHHHHH!" William howled, staggering back for only a moment. The explosion barely slowed him down—it only made him angrier.
"Fall back! Move!" HUNK barked, his voice steady even as chaos erupted around him.
He tossed the suitcase containing the G-Virus samples to one of his men.
"Secure that case. I'll hold him off."
"No, Captain—!" one of the operatives shouted, but HUNK was already stepping forward.
He slammed his hand on the emergency door controls. Ksshhk! The heavy blast door slammed shut behind him, sealing the others off and buying them precious seconds.
William lunged at HUNK the moment the door closed, his massive claw carving through the air.
HUNK dodged, the mutated arm smashing into the steel door instead, warping it inward.
With calculated precision, HUNK drew his combat knife and opened fire on William's weak point—the giant eye. Bang! Bang! Bang!
"GRRAAAHH!" William staggered, the eye convulsing in pain.
SLASH!
HUNK's blade carved into the exposed tissue, earning another thunderous scream.
But William retaliated instantly—his massive arm whipping out. The blow connected squarely with HUNK, throwing him across the tunnel like a rag doll. He slammed into a wall, his body going limp as he fell unconscious.
William roared triumphantly, then turned his attention to the escaping Alpha Team.
With a furious charge, he smashed through the bent emergency door and barreled after the fleeing operatives.
The surviving USS members scattered through the sewer maze—but fate had already sealed their mission.
As William thundered forward, he stomped directly onto the metal case holding the G-Virus samples.
Crack.
The container split open, spilling glowing blue liquid across the floor. The virus seeped into the drainage channels, carried deeper into the sewer system—where swarms of rats and other vermin skittered through the sludge.
The infection began instantly.
Realizing the situation had spiraled beyond recovery, the remaining Alpha Team survivors split up and retreated into different tunnels. Their mission was a failure, and they needed to regroup and report what had happened to Umbrella command before they were hunted down as well.
The nightmare had only just begun for them—because William would hunt every last one of them down, one by one. Anyone still breathing in those tunnels had just become prey.
...…
Meanwhile, Rachel watched the chaos unfold through Umbrella's security cameras—feeds she had hacked into using the device Allen had given her. The moment William smashed through another steel bulkhead on-screen, Rachel's eyes widened.
"…What the hell was that?" she muttered, recoiling slightly from the monitor. "WTF—this is getting way out of hand."
She clicked through several camera angles, trying to track both William and the scattered USS operatives. Every view showed carnage—broken bodies, blood-smeared walls, and glimpses of William's twisted silhouette as he stalked the tunnels like a demon.
"Tsk… great. Just great," Rachel groaned, rubbing her forehead. "Now I definitely have to report this to Allen. And I need to convince him to get out of this city ASAP."
A flicker of anxiety passed through her expression—not for the situation, but for Allen.
She knew exactly how dangerous the coming days would be, especially if more bioweapons escaped containment. Facing monsters like that was something even she didn't want to do.
Sure, she'd been boosted with the Super Soldier serum—but that didn't mean she was eager to test her limits against a rampaging G-Mutant. Being stronger didn't make her reckless.
Especially now.
Rachel's hand subconsciously moved to her stomach, gently brushing over it.
She was carrying Allen's child.
And that meant every reckless plan, every direct confrontation, every unnecessary risk—was off the table.
"…Yeah, no. Definitely not putting myself in front of that thing," she whispered, her worry mixing with frustration. "Allen, please… don't make this harder."
Her eyes flicked back to the feed—just in time to see William tear through another squad of soldiers like they were made of paper.
Rachel exhaled sharply.
This was going to be a long night.
******
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