Death Guard (XIV Legion) – Horus Heresy Era (ca. 005-014.M31)
Primary colours: Death Guard green (pale, corpse-like green/cream) power armour with brass, bronze, or bone-coloured trim and accents. Pre-Heresy they were often a cleaner off-white or bone with green elements; as corruption set in, armour took on a decaying, pustulent appearance with organic growths and rust.
Legion symbol: A stylised skull (often with wings, hourglass, or reaper motifs) or the alchemical symbol for death/toxins. Many warriors incorporated fly icons, scythes, bells, and plague motifs even before full Nurgle corruption.
Common decorations: Practical and grim. Extensive use of hazard stripes, warning symbols, bones, reaper imagery, and chem-tank details. Armour was often heavily weathered, pitted, and battle-scarred. Vehicles carried similar grim iconography, chem-smoke emitters, and corpse/trophy displays. The aesthetic was that of relentless, inexorable bringers of death.
The Death Guard favoured a stoic, endurance-based hierarchy rooted in Barbaran traditions of survival and loyalty to Mortarion. Ranks were functional rather than ostentatious.
Standard ranks: Legionary (Battle-Brother) → Sergeant → Captain → Lord Commander / Deathshroud equivalents.
Veterancy markers: More brass or gilded details, additional chem-tanks, and reinforced plating. Veterans bore more scars and hazard markings.
Deathshroud: Primarch’s elite Terminators and honour guard. Clad in ornate but brutal Cataphractii Terminator armour with massive power scythes (manreapers) and chem-weapons. Silent, implacable protectors.
Grave Wardens: Elite 1st Company Terminators. Heavy plague/chem specialists in Tactical Dreadnought armour.
Other distinctions: Company numerals in brass or bone, reaper/scythe motifs for assault units, and helmet variants (many with respirator or skull-faced helms). Officers often carried manreapers or large chem-flamers. Apothecaries and Destroyers had distinct toxic/rad markings.
The Legion valued unyielding resilience and loyalty over flair.
The XIV Legion originated from Terran recruits adapted to toxic and radioactive environments. They suffered high attrition but became masters of grim, attritional warfare.
Primarch Mortarion was discovered on the toxic death world Barbarus, where he led a rebellion against tyrannical overlords. Nicknamed the Pale King or Death Lord, he instilled the Legion with his values of endurance, hatred of weakness/tyranny (especially psykers), and the use of chemical/biological weapons. The Legion adopted Barbarus as their home and recruited heavily from its hardy people.
Pre-Heresy, they were renowned for breaking the most inhospitable warzones and delivering slow, inevitable death to enemies. They fought many bitter campaigns alongside the Luna Wolves and others.
During the Horus Heresy: The Death Guard joined Horus early. They participated in the Istvaan III purge and Istvaan V Drop Site Massacre. While en route to Terra, the Legion was trapped in the Warp by a massive Nurgle plague engineered by Typhus. The entire Legion (except Mortarion initially) suffered horrific mutations and diseases. Mortarion eventually bargained with Nurgle, fully committing the Legion to the Plague God. They emerged as diseased monstrosities, renamed themselves the Death Guard, and became vectors of plague and despair. They played a major role in the Siege of Terra, unleashing biological horror on the Imperial Palace.
They became one of the most unified Traitor Legions, fully embracing Nurgle’s gifts of endurance and decay.
Tactics: Masters of attritional warfare, zone mortalis combat, and biological/chemical assault. They advanced relentlessly under heavy fire, using toxins, rad-weapons, and plagues to weaken enemies before crushing them in close assault. Preferred grinding, no-retreat advances, boarding actions, and siege warfare. “You cannot kill what does not die.” Post-corruption, they weaponised disease itself.
Common weapons/equipment:
Signature weapons: Manreapers (power scythes), chem-flamers, rad-missiles, phosphex, and biological munitions. Heavy bolters and melta.
Specialist: Destroyer squads with rad/chem weapons; extensive use of blight grenades and plague bombs.
Elite gear: Deathshroud with massive power scythes and terminator plate; Grave Wardens with heavy toxin dispensers.
Vehicles: Rhinos, Land Raiders, Spartans, and Dreadnoughts (many later becoming foul Plagueburst Crawlers in concept). They favoured durable, toxin-spewing transports.
Mortarion’s wargear: Silence (massive power scythe), The Lantern (pistol), and his Barbaran plate.
They excelled at breaking fortified positions and wearing down even the toughest defenders.
Mortarion (the Pale King / Death Lord): Primarch. Grim, endurance-obsessed warrior who bargained with Nurgle. Wielded immense power but carried deep resentment toward the Emperor.
Typhus (Calas Typhon): First Captain / Host of the Destroyer Hive. Ambitious and plague-ridden; orchestrated the Legion’s fall to Nurgle. Became a powerful Daemon Prince.
Ignatius Grulgor: Captain who became a champion of decay.
Deathshroud: Elite warriors like the twins (various named protectors who fought at Mortarion’s side).
Other captains: Nathaniel Garro (loyalist who defected early with the Eisenstein), various Grave Warden and Destroyer leaders.
Notable figures: Caipha Morarg, Vetch (and other plague champions who rose during the Heresy).
The Death Guard transformed from stoic, unyielding bringers of necessary death into the inexorable plague legions of Nurgle. Their fall symbolised the corruption of endurance into endless suffering.
Ave Pater Mortis!