Regressed with Omnipotent AI on Zombie Apocalypse-Chapter 186: Biological Weapon

"High-energy biological reaction?" Zack frowned slightly but didn't pay it much mind. The Fearless Warriors were more than capable of handling any biological threat. Armed with power armor and chainswords, they could go toe-to-toe with even the most fearsome creatures, like the Mutated Lord, and come out unscathed.

Zack wasn't concerned—until he heard it. "ROAR!" The sound was deafening, followed by the rumble of collapsing buildings. A massive figure burst from the underground slope inside the base, its body dripping with blood and scraps of flesh.

The creature was enormous, standing five meters tall—nearly two stories high. Its limbs were humanoid in structure but covered in fur, claws, and fangs more fitting for a beast. Its face and palms bore distinctly bear-like features, though its fur was striped like a tiger. The mismatched features gave it a grotesque and unnerving appearance, as though a tiger and grizzly bear had been forcibly fused with human DNA through some horrific biotechnology. Two large tumors protruded from its shoulders, and its pale, lifeless pupils radiated a chilling emptiness. On its left shoulder, where the fur had been burned away, bold lettering branded its identity:

[BIOLOGICAL WEAPON NO. 01]

[FROM MUTANT TRANSFORMATION PROJECT: ShapeShifter]

[WARNING: PRODUCT DEFECTIVE. RELEASE STRICTLY PROHIBITED.]

"ROAR!" Biological Weapon No. 01 emerged into the sunlight, its monstrous form visible to all. Its pale eyes narrowed, and its massive nose sniffed the air. The acrid scent of gunpowder and the pungent stench of blood seemed to ignite something within it. Droplets of scarlet liquid dripped from its bloodstained fangs—whether saliva or remnants of its earlier victims was unclear.

The creature locked onto a direction and charged at full speed. Buildings in its path were reduced to rubble, crumbling like paper under its sheer power.

"ARGhhhh!" Survivors hiding in one of the buildings barely had time to react before the roof was ripped away. The beast's bloodied maw descended, tearing into its victims without mercy.

Victor, watching the carnage from the command room, paled. This was far beyond what he had anticipated. He'd expected No. 01 to target the invading mechanical army. Instead, the creature was attacking indiscriminately, treating all living beings as prey. The personnel in the underground base had been the first to fall, but now the residential areas were in chaos. For No. 01, anything that moved was a target.

"High-energy biological reaction confirmed!"

"Threat level critical! Concentrate firepower!"

The mechanical legions instantly identified the threat and formulated a plan. Terror Spiders lined up in formation, their electromagnetic railguns charging simultaneously. They locked onto No. 01's location, scanning through the rubble.

BOOM! BOOM! BOOM!

Ten tungsten rounds, each traveling at over Mach 10, were fired in unison. The bullets tore through multiple walls, ignoring the buildings in their path as if they didn't exist. Six of the rounds struck their mark, hitting No. 01 squarely as it crouched over a mutilated corpse. The tungsten rounds ripped through its massive frame, creating gaping holes from front to back.

Blood sprayed everywhere. For a moment, the beast staggered, roaring in fury. It threw aside the remains it had been gnawing on and broke through another wall, charging toward the mechanical army with terrifying speed. Its pale, zombie-like eyes were filled with rage—a rage that hinted at intelligence.

"ROAR!" As the beast moved, the gaping holes in its body began to close. Muscle fibers visibly knit themselves together, sealing the wounds in seconds.

"Engage the target!" The Fearless Warrior swung its chainsword in a powerful arc, leaving a crimson trail in the air as it aimed for Creature No. 01.

"ROAR!" But this was no ordinary creature. A monstrous amalgamation of the bear, wolf, and tiger changers, it responded with terrifying speed. Its massive paw, nearly half a meter across, lashed out from below with such force that afterimages blurred in its wake.

BOOM!

The chainsword never landed. No. 01's paw slammed into the warrior's chest, the impact ringing out like an explosion.

CRACK!

The thick power armor, designed to withstand immense force, buckled inward. The sheer power sent the Fearless Warrior hurtling through the air like a ragdoll, soaring at least ten meters before crashing into the ground. The impact left a deep crater in the earth.

"Fight!" The remaining Fearless Warriors didn't hesitate. Ignoring their fallen comrade, they charged forward, unshaken by the creature's overwhelming strength.

These super soldiers had been stripped of fear, their minds rewired with chips that not only restored their ability to think but also implanted centuries' worth of military training. Realizing their opponent was both faster and stronger, the remaining warriors quickly adjusted their tactics. The chaotic rush turned into a coordinated assault. Warriors attacked from multiple angles simultaneously, leaving no blind spots for the creature to exploit. They deliberately left gaps in their formation, allowing the mechanical legions to maintain their barrage.

BOOM! BOOM! BOOM!

The mechanical legion didn't let up. Terror Spiders and mechanical dogs unleashed a relentless storm of firepower, their bullets and electromagnetic rounds tearing through the air. The battlefield was consumed by smoke, even thicker than before, as explosions echoed endlessly.

"Target identified: Unknown large biological entity with super self-healing capabilities," a mechanical dog's AI reported. "Conventional weapons ineffective. Combat effectiveness remains stable despite sustained damage."

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It was true. No matter how many rounds were fired, no matter how many slashes the chainswords landed, Creature No. 01 healed its wounds almost instantly. Its monstrous body seemed impervious to lasting harm, its regenerative abilities far surpassing anything the mechanical army had encountered before. "Requesting authorization to deploy weapons of mass destruction," the Terror Spider's AI transmitted to Zack. Among its arsenal, each Terror Spider carried a deployable, controlled hydrogen bomb.

"Request denied," Zack replied coolly. "Fall back and draw it to me."

As the mechanical army began its tactical retreat, a hatch on Aegis opened once more. From the massive aircraft, a sleek set of gold-and-red armor shot into the air, its streamlined design glowing faintly with energy.

"Biological Weapon No. 01, huh?" Zack muttered as he approached, clad in the Apex Mk-2 armor. Even before landing, the suit's built-in scanning system had analyzed the laser-branded markings on No. 01's shoulder.

"I'm really starting to hate these guys," Zack said, his voice laced with irritation. "They just can't stop messing with biology. Haven't they learned their lesson yet?" He was still furious over the Night Queen incident, and now the Vanguard Organization had unleashed another uncontrollable abomination. Unlike Zack's purely mechanical advancements, the organization had delved into dangerous bioengineering, creating monsters like this one.

"Ego, scan it for weaknesses," Zack commanded as he dived toward the battlefield. The Apex Mk-2's palm cannons, upgraded for rapid firing with zero charge time, unleashed a barrage of particle beams as Zack descended.

BOOM! BOOM! BOOM!

The beams struck No. 01's massive body, each hit leaving wounds the size of a bowl. The edges of the injuries were charred, smoke rising from the burnt flesh. The damage was devastating, rivaling the power of the Terror Spiders' electromagnetic railguns. The Apex Mk-2's enhancements were clearly evident—not only had the firing rate improved, but the power of the palm cannons was on a completely new level.

"ROAR!" Despite the assault, No. 01 roared in defiance. The creature's wounds began to close almost instantly, muscle fibers knitting together at an alarming speed. It charged through the onslaught, its pale eyes burning with rage.