Welcome to the Aleph Sector Campaign blog, Sheffield University Wargames Society's narrative based campaign set in Games Workshop's Warhammer 40,000 universe. If you are new here, have a read of the Aleph Sector Campaign System. This will explain what the campaign is, how it works etc. If you are really keen you can download the entire ten year history of the campaign! If you are a new student in Sheffield, visit the Wargames website from the links section on the right to get involved!
Friday, March 28, 2025
The Battle for Corredon Outpost: Silver Templars Strike
The Eldar Intervention on Hylas
In pursuit of this goal, the Eldar had long maintained an alliance with the Tau Empire and the Federacy, subtly guiding their expansion efforts while working to undermine the Imperium wherever possible. However, by 03.025M42, the Imperial resurgence in the Zadoc subsector threatened not only the Tau’s long-term viability but also the hidden Eldar shadow worlds of the Mabb Nebula. Faced with the potential collapse of the Zadoc Expansion Sphere, the Farseers of Kel Sandros decreed that intervention was necessary.
The Eldar Assault on Hylas
The Imperium had gained momentum on Hylas, pushing the Alliance forces back to their original landing zone. In response, the Kel Sandros Eldar launched a devastating assault on the Imperial forces holding the cities of Benger and Desmond, striking at the Aleph Wardens regiments stationed there.
The Imperial defenders, highly mechanised and well-equipped, were confident in their armoured superiority—but they were unprepared for the speed and lethality of the Eldar warhost.
The Eldar Aspect Warriors executed flawless ambush tactics, using the terrain and their superior mobility to outmanoeuvre and devastate the Imperial armour. Fire Dragons made short work of Leman Russ tanks, their melta weaponry turning steel into slag in seconds. Meanwhile, the Eldar Jetbikes tore through Imperial formations, cutting down infantry and mechanised units alike with deadly precision.
At the heart of the assault, the Avatar of Khaine strode through the battlefield, an unstoppable force of destruction. The Imperial defenders threw everything they had at the incarnation of the Bloody-Handed God, but fate itself seemed to favour the Eldar warform. Lascannon blasts, battle cannon shells, and plasma fire that should have felled even a Greater Daemon were shrugged off as the Avatar rampaged through the enemy ranks, cutting down entire squads of Guardsmen and tank crews with every sweep of the Wailing Doom.
The Fall of Benger and Desmond
Despite their superior numbers and firepower, the Imperial forces were shattered by the relentless Eldar assault. The Aleph Wardens, unaccustomed to facing such fast-moving and highly disciplined xenos warriors, crumbled under the onslaught. By the end of 03.025M42, two full regiments of mechanised Imperial Guard had been all but annihilated, and the cities of Benger and Desmond had fallen to the Alliance.
As swiftly as they had appeared, the Eldar melted back into the Webway, leaving the Tau forces to occupy the newly reclaimed ground. The Kel Sandros warhost had achieved its goal, striking a blow against the Imperial resurgence and prolonging the survival of the Tau Expansion Sphere.
The Tau-Federal alliance—reeling from its previous losses in the subsector—gratefully accepted the Eldar assistance, consolidating their hold on Hylas. Meanwhile, the Farseers of Kel Sandros, satisfied with their intervention in the strands of fate, withdrew to plan their next move in their centuries-long war against the Imperium of Man.
The Tyranid Onslaught in the Rifts of Hecate: The Battle for Helos Majoris
Monday, March 10, 2025
Shadow War on Fort Sparcos escalates
A Chaotic Warzone
As the Necrons emerged, the situation deteriorated further when a force of Black Templars arrived, their presence linked to General Van Dorn’s wider operations in the Zadoc subsector. Sent to reconnoitre the system and assess enemy strength, the Templars instead found themselves drawn into a brutal four-way battle.
The fighting inside Fort Sparcos was fierce and unrelenting. The Necrons, despite being outnumbered, weathered the combined assault of both the Black Templars and the Death Guard, proving their resilience and cutting down scores of warriors from both factions. The Death Guard, unwilling to relinquish their hold over the fort, committed their corrupted Astartes to the slaughter, while the Templars, undaunted, sought to purge both xenos and traitors alike.
Curiously, the Votann forces remained largely unscathed, despite being active participants in the battle. Whether this was due to sheer luck, advanced tactical manoeuvres, or something else entirely remains a mystery, but their effectiveness in direct combat was questionable at best. They failed to make significant gains, though they did manage to carve out a small foothold within the fortress.
A Pyrrhic Victory for Chaos
When the battle finally subsided, Chaos had emerged as the nominal victor. The Death Guard, despite suffering substantial casualties, had managed to reassert control over key sections of the Labyrinthine complex. The Necrons and the Votann retained isolated bridgeheads within the fortress, but neither faction had managed to dislodge the Chaos forces entirely.
The Black Templars, despite their zealous assault, were ultimately forced to retreat, unable to establish a foothold against the overwhelming tide of enemies. Their withdrawal marked a significant setback for Imperial operations in the region, as Van Dorn’s strategy for the Zadoc subsector now faced a growing and unpredictable threat at Fort Sparcos.
For now, Chaos remained in control, but Fort Sparcos was no longer the secure bastion it once was. With Necron, Votann, and even Ork warbands contesting sections of the installation, it seemed inevitable that the fortress would continue to be a battleground for some time to come.
Tau Base on Garmenes lost
As the Tau fought desperately to stem the tide of Tyranid monstrosities, a new threat emerged—the Emperor’s Children. The traitorous warriors of Slaanesh, ever drawn to excess and opportunity, descended upon the war-ravaged world, not to defend it, but to loot and sow further destruction. They raided Tau bases, stealing technology, weaponry, and valuable resources, while slaughtering both the defenders and any surviving civilians.
With the Tau forces already struggling to hold back the Tyranids, the sudden appearance of the Chaos warbands turned an already dire situation into a total catastrophe. Unable to counter two relentless enemies at once, the Tau lines crumbled, and their retreat quickly turned into a panicked evacuation.
By 1203.025M42, any Tau who could escape had already fled, abandoning Garmenes to its fate. The Emperor’s Children withdrew as well, having taken all they could from the shattered Tau infrastructure. With no meaningful resistance left, the Tyranids began the inevitable process of consuming the world, stripping it of all organic matter to fuel the hive fleet’s continued advance.
The fall of Garmenes marked the complete collapse of the Tau expedition into the Rifts of Hecate. What had once been an ambitious expansion effort had now turned into a desperate retreat. The remnants of the surviving Tau forces fled back towards Echo Reach, carrying with them a dire warning—the Hadron Expansion Sphere itself could now be in grave danger.
Hylas: Benger reclaimed by the Imperium
Friday, March 07, 2025
Tyranids land on Calthingum
Drukhari Raids Sow Chaos in the Hadron Expanse
Malkaor’s Offensive: The Purging of Chaos on Zadoc
Upon his arrival, Malkaor wasted no time in assessing the situation. While the Tau still held their bridgehead on the planet, their position was tenuous. The forces of Chaos, though fractured, were well-entrenched and threatened to turn the conflict into a prolonged attritional war. Malkaor rejected stagnation, opting instead for a decisive and fast-moving offensive, aimed at sweeping Chaos from the region in a single, devastating strike.
Malkaor’s forces struck south from the Tau stronghold at Chettalo, executing a meticulously planned Mont’ka (Killing Blow) manoeuvre. The Chaos warbands, still overconfident from their recent engagements, were caught completely off guard by the sheer speed and precision of the attack.
The Tau assault was spearheaded by mechanised Hunter Cadres, supported by Hammerhead gunships, Crisis Battlesuits, and a devastating barrage of artillery and air support. The cultist hordes and traitor militia were annihilated in the opening moments of the battle, their poorly organised defences obliterated under pinpoint railgun fire and withering pulse barrages. The more elite Chaos warbands, including a strong force of traitor Astartes, attempted to regroup, but Malkaor’s fluid battlefield command ensured that no Chaos force was allowed to consolidate its position.
With their forces in complete disarray, the Chaos armies collapsed, suffering catastrophic losses. The Tau advanced rapidly, sweeping southward and capturing key cities in quick succession. Within days, the strategic settlements of Antolovi and Guion had fallen, and Tau forces stood poised to claim the entirety of the southern continent.
The battle had been a masterclass in Tau warfare, demonstrating the effectiveness of speed, precision, and overwhelming firepower against an enemy reliant on brute strength and attrition. Commander Malkaor’s victory shattered the Chaos presence on Zadoc, solidifying the Tau foothold and allowing the Federacy to redirect resources elsewhere.
However, while the forces of Chaos had been broken, the Imperium remained entrenched. With the Dark Angels continuing their guerrilla war on New Cerberex, and Van Dorn’s offensive gaining traction, Malkaor’s success, though significant, was only one part of a far greater war, a war that was still far from over.
The Battle of the Harian Mesa: Securing the Imperial Corridor
The offensive was launched with multiple regiments of Astra Militarum, primarily composed of mechanised infantry and heavy armour units. However, the nature of the Harian Mesa—a rugged expanse of crumbling ridges, rocky canyons, and deep dust traps, made large-scale mechanised movement slow and arduous. The Death Guard, well-adapted to prolonged attritional warfare, took full advantage of the environment, using ambush tactics, entrenched fortifications, and chemical bombardments to grind down the advancing Imperial forces.
The fighting was brutal. The Death Guards' resilience, combined with the Mesa’s difficult terrain, led to massive equipment losses on both sides. Tanks, transports, and artillery pieces were destroyed in droves, reduced to smouldering wrecks by precision fire, airborne plagues, or simply breaking down in the harsh landscape. The Imperial Guard, however, maintained their greatest advantage; sheer numbers. Where the Death Guard relied on heavily armed and armoured formations, the Imperium could replace its losses far more effectively, with wave after wave of infantry pushing forward despite horrific casualties.
While the Death Guard defenders inflicted staggering losses, the Imperial war machine proved inexhaustible. The sheer volume of infantry assaults, combined with constant artillery bombardments, eventually overwhelmed the Chaos forces, forcing them into a disorderly retreat. With their vehicles destroyed and their fortified positions overrun, the Plague Marines were unable to hold their ground, and Imperial forces systematically cleared the mesa, securing vital high ground and pushing Chaos remnants into the surrounding wastes.
By the end of the battle, the Harian Mesa had been fully taken, eliminating the Chaos salient that had so long threatened the Imperial corridor. At last, Menoria Hive and Westosa Hive were securely joined, forming a continuous and defensible Imperial sector in the heart of Mordecai Primaris.
With the Harian Mesa pacified, General Kutuzov and Imperial High Command were left with a difficult strategic choice. While their sector was now secure, it was surrounded on all sides by the hostile wastelands of Mordecai, with any further advance requiring long and vulnerable supply lines. The remaining Chaos strongholds - particularly the remaining hive cities of the planet - stood deep in the deserts, meaning any future offensive would be costly and logistically complex.
For now, the Imperium had secured a key victory, but the war on Mordecai was far from over. The next decision could determine the fate of the entire campaign.