Utilizing his quantum printing module, Axion swiftly reconstructed the semi-sentient core. He reinstalled the newly fabricated logic processor into the dissembled war engine, carefully returned the Skitarii driver, who had just been rescued from the abyss of total sensory deprivation, to his original position, and initiated a comprehensive sequence of structural and architectural modifications.
A dense network of internal tethers and neural cables was rerouted, leaving behind a modest void within the chassis where Axion installed a dedicated data-filtering array. The machine's localized data caches were thoroughly purged, systematically erasing the fragmented, residual consciousness data belonging to the countless Skitarii pilots who had previously expired within the amniotic tank; only the foundational, pure combat methodology algorithms were preserved.
With the internal architecture optimized, Axion turned his attention to the exterior armor plating. He reshaped the Onager's rounded, kettle-like hull into a series of stark, sloped, diamond-angled deflecting surfaces to drastically minimize the penetration vectors of solid-projectile munitions. The rear-mounted micro-fusion reactor underwent structural optimization as well, shrinking its physical volume while increasing overall thermal efficiency.
As for the engine's modular weapon configuration, Axion chose to leave the hardpoints unaltered. He understood that introducing proprietary variations to standardized field armaments would only complicate logistics and sow tactical chaos across active war zones.
Furthermore, Axion harbored a fundamental confusion regarding the operational classification of the asset. If the objective was purely the distribution of sustained ballistic and energy ordnance, heavily armored tanks were demonstrably superior platforms.
The main hull was rehoisted onto the quad-pedal walking platform, and the command tethers were locked into place.
For a brief second, the drastically altered Onager Dunecrawler faltered, its long mechanical limbs staggering unsteadily as if intoxicated, before the internal gyros snapped the vehicle into a rigid, perfectly balanced stance.
The driver's voice broadcasted from the external vocal-emitters, carrying a faint veneer of synthesized static.
"By the Omnissiah... that transition was terrifying."
"How strange... I can no longer commune with the machine-spirit. And yet, I register... physical comfort?"
Stepping forward from the gallery of onlookers, Magos Valentine commanded, "Soldier. Exercise the engine. Report precision feedback. Transmit the vehicle's telemetry summary directly to my cortex."
"Your command is executed, Magos."
The Dunecrawler suddenly bolted across the expansive iron plaza. Its terrestrial velocity was visibly twice that of its original factory specifications. Embracing a sudden burst of confidence, the driver pushed the machine into a series of aggressive, near-impossible tactical maneuvers.
The quad-pedal platform flexed, adjusted its kinetic dampeners, and leapt into the air.
Thump.
The war engine cleared a staggering distance before sticking a flawless, rock-solid landing, sending a heavy, resonant shockwave vibrating through the deck plates.
"Gunner. Ingress the vehicle."
At Valentine's decree, the gunner whom Axion had previously evicted sprinted back toward the machine. The driver coordinated seamlessly, collapsing the chassis's lower suspension to drop the hull's height to the deck.
The gunner bounded upward, grabbing the structural handrails of the exterior ladder, though he found himself momentarily struggling to find his footing against the newly smoothed, sloped armor plating. The upper hatch hissed as it slid open automatically, and the gunner dropped into the fighting compartment.
The labyrinth of mechanical switches, toggles, and manual relays that had previously choked the gunner's station was completely gone. In their place sat a specialized helm tether and two entirely unfamiliar control levers.
Sinking into the weapon-operator's cradle, the gunner hesitantly donned the helm and rested his hands upon the control grips.
Every square inch of the station was defined by an absolute mastery of ergonomic design. The posture it forced upon him was exceptionally comfortable, placing zero strain upon his spine. Inside the helm, his primary visual feed was flooded with high-resolution optical telemetry, detailing a pristine, real-time read of the slaved weapon systems.
The twin omnidirectional levers moved with liquid fluidity, allowing him to track the upper hull's rotation and sight the primary armaments with effortless flicks of his wrists. Actuating buttons integrated into the grips handled weapon discharge, while clear, dynamic status vectors framed the periphery of his consciousness.
Though he had yet to conduct a live-fire calibration, the chassis rotation was incredibly responsive, tracking perfectly with his helmet's targeting reticle. The upper hull spun with blinding speed, yet the gunner felt none of the brutal, neck-snapping inertial forces that usually plagued the chassis.
With the preliminary kinetic trials completed, the driver piped the machine's operational data directly to Magos Valentine, who had produced a copper-plated data-slate from the depths of his robes.
The Magos scrutinized the streaming logs against the baseline parameters of the standard Lucius pattern. Kinetic agility had expanded by a staggering 72%.
The machine's response latency had been slashed by more than half.
Setting aside the driver's unsettling report regarding the absence of a machine-spirit, the overall operational efficacy of the entire war engine had effectively doubled.
Axion, parsing the shifting logic loops of the Tech-Priest, spoke into the silence.
"The structural modification of the hull was minor. Given the modularity of the armaments, the weapon matrix was preserved. The optimized armor configuration yields a 337% increase in kinetic ballistic deflection. Material enhancement increases energy-weapon dispersal by 265%. Power output has been accelerated by 42%."
"Operational efficiency has been maximized; cognitive strain on the pilot has been heavily mitigated. The control interface was entirely re-engineered to facilitate enhanced mechanical synchronicity."
"Excluding the static output of the weapon itself, the asset's comprehensive combat efficiency has been advanced by approximately 441%."
The Tech-Priests could not truly comprehend that Axion's modifications were far more profound than mere performance metrics. By neutralizing the debilitating neurological stress and halting the unnatural degradation of the pilot's biological brain matter, Axion's engineering had undeniably spared the Skitarii a lifetime of excruciating agony. Yet, in the grim reality of the Imperium, it also ensured this miserable soul would remain trapped within the iron womb of his war engine for an exponentially longer lifespan.
In a universe such as theirs, death was often the only true mercy available.
When Axion redirected his optical sensors toward the adjacent Ironstrider Ballistarius, the wretched machine was currently shivering within the confines of a crude gantry frame.
Beyond its exaggeratedly long bipedal legs and the central engine block, the Ironstrider was weighed down by an integrated servitor assembly. This biological component managed the intricate mechanical adjustments of the drive-engine, allowing the Skitarii rider to execute complex terrain maneuvers and tactical repositioning with nothing more than rudimentary conceptual prompts.
Unlike the amniotic pilot of the Dunecrawler, these servitors, though still built from living flesh, had possessed their cerebrums utterly hollowed out and rewritten by invasive cybernetic hardware. They had been entirely stripped of the self, reduced to nothing more than crude, organic sub-processors.
Through the gaps in the framework and missing chassis plates, anyone could easily observe the exposed, semi-naked organic mass hanging in the open air. Its limbs had been partially amputated, replaced by crude alloy tethers that bound it to the machine. The torso was pitched forward, hard-wired into the engine blocks in a permanent, agonizing crouch. Its head was encased in an armored alloy cowl reminiscent of a heavy industrial respirator, protruding awkwardly from the chassis while thick, pulsing tubes ran directly into the base of its skull.
The Ironstrider's two slender mechanical legs clawed endlessly at the empty air. Because the feet could not find traction against the deck, the perpetual motion of the internal gearing produced a constant, high-pitched metallic whirring.
The core inspiration for this bipedal frame traced its lineage back to the stilt-like cybernetic prosthetics pioneered by the Sydonian clans during Mars' chaotic Age of Strife. In the early centuries of M33, Tech-Priest Aldebrac Vingh was struck by divine inspiration, codifying the Ironstrider Ballistarius and iterating its mechanical design to a state of near-flawless execution.
Vingh had engineered a kinetic propulsion matrix that operated on the precipice of perpetual motion. Its operational efficiency was so absolute that it afforded the Ironstrider near-infinite operational range. Once ignited, this self-sustaining apparatus required no external fuel, permitting the engine to conquer any hostile environment and sustain hunting campaigns across protracted timeframes.
However, plagued by the pervasive dread that a total system shutdown would cause the engine's machine-spirit to flee forever, rendering the asset permanently inert, the Skitarii cohorts chose to never deactivate their Ironstrider walking platforms. Because the perpetual-motion cores drew negligible power while running idle, the ruling Magi simply turned a blind eye to the practice.
Whenever a rider was required to mount the war engine, a heavy industrial crane would lift the entire Ironstrider off its racks, lowering the furiously cycling legs just close enough to the ground for the pilot to ascend, lock himself into the control saddle, and ride the machine out onto the terrain. When not deployed in active war zones, columns of unridden Ironstriders were bolted to massive industrial treadmills, their ceaseless running harnessed to generate power for the Forge World's grids.
Aside from the organic wetware component, which remained the single most failure-prone link in the assembly, this mechanical creation was viewed by the Adeptus Mechanicus as a flawless monument to the Machine God.
They wished to see if the ancient Iron Man could find any structural imperfection in what they deemed perfection itself, which was why they had displayed it so prominently.
And Axion was indeed captivated. He stood before the shivering machine, his cognitive cores generating and discarding strings of erratic, corrupted data logic in rapid succession.