An Age of Darkness has descended upon the galaxy. Horus Lupercal, Warmaster of the Emperor's armies, has turned against his gene-father and sent the Imperium spiralling into bloody civil war. Of the eighteen great Space Marine Legions, finest of all humanity's soldiers, fully half have sided with the traitorous Warmaster, while the remainder stand staunchly loyal to the Emperor. It is a war of brother against brother, Space Marine against Space Marine, which has seen the might of the Imperium's vast armies turned upon itself in a cataclysm of fire and blood.

The Rhino is the most widely used armoured personnel carrier in the Imperium. Based on ancient STC technology, the fundamental design is robust, reliable, and easy to maintain, with an adaptive power plant that can run off a wide variety of fuels, making it perfect for the wide-ranging armies of the Great Crusade – and the wars of the Horus Heresy. As such, the Rhino chassis serves as a basis for many other war machines, and these transports are produced in their thousands – several distinct patterns are in common use throughout the galaxy, with the heavily-armed Deimos being the most widespread amongst the Space Marine Legions.

The Sicaran is among the most advanced of the armoured vehicles fielded by the Legiones Astartes, a fast-moving destroyer tank with a number of variants favoured throughout the Legions. The Sicaran Venator replaces the standard turret-mounted cannon with a powerful neutron laser that can slice through armoured hulls and blast internal compartments with atomic fire. Coupled with the Sicaran's ferocious speed, this volatile weapon makes the Sicaran Venator an ideal tank hunter, capable of delivering devastating firepower to anywhere on the battlefield.

This multipart plastic kit builds one Legion Scorpius, a mobile artillery piece built on the Deimos-pattern chassis. This tank's turret-mounted missile system is loaded with rotary racks of explosive rockets, ready to saturate whole battlefield zones with a whirlwind of shrapnel and flames. Its launchers can be assembled at a variety of angles, to suggest a devastating volley of direct fire or an arcing salvo of munitions that will wipe out all but the heaviest infantry.

Heavy Support Squads provide the Legiones Astartes with mobile, infantry-portable firepower sufficient to bring down hordes of enemy troops or smash armoured vehicles apart with withering hails of fire, combining devastating armaments with all the flexibility of a footsoldier. Heavy bolters are the largest bolt weapons available to infantry, unleashing a storm of shells that tear apart enemy formations, while missile launchers are prized for their versatility, offering a variety of explosive munitions suited to eliminating infantry, tanks, or aircraft.

The Space Marine Legions of the 31st Millenium field a diverse and formidable range of genetically-enhanced warriors and advanced war machines, superior to any other military force in the galaxy. As an Age of Darkness falls across the stars and the fires of rebellion rage out of control, the armies that were used to forge the Imperium turn upon each other in an apocalyptic civil war – the Horus Heresy.

The Sicaran is one of the most advanced armoured units in the arsenal of the Legiones Astartes, a fast-moving destroyer tank designed to outflank enemy formations before unleashing an overwhelming onslaught of mid-range firepower. Though its chassis supports a number of variants fielded throughout the Legions, the core Sicaran battle tank remains a versatile favourite. Armed with Herakles-pattern accelerator autocannons, it provides high-volume, high-velocity fire support that can rip through infantry and vehicles alike – its sophisticated sensors tracking swift-moving targets and pinpointing vulnerabilities in enemy armour.

Outside the loyalist Space Marine Legions and the Cult Mechanicum, the Emperor wields forces which are loyal only to him. The Legio Custodes guard the Emperor's person, while the Sisters of Silence stand watch over the Black Ships. The Solar Auxilia are the elite spearhead of the Imperial Army, exemplars of mortal soldiery, while the Divisio Assassinorum is the Emperor's culling blade, aimed at the neck of any foolish enough to imperil his grand dream of Unity.

The Space Marine Legions of the 31st Millenium field a diverse and formidable range of genetically-enhanced warriors and advanced war machines, superior to any other military force in the galaxy. As an Age of Darkness falls across the stars and the fires of rebellion rage out of control, the armies that were used to forge the Imperium turn upon each other in an apocalyptic civil war – the Horus Heresy.

The Deredeo Dreadnought is a walking heavy weapons platform, designed to combine superior firepower with the flexibility and durability of a Dreadnought chassis. Though highly resource-intensive to produce and maintain, its undoubted survivability and killing power ensures the Deredeo is in high demand by Traitor and Loyalist Legions alike from the few Forge Worlds able to fashion them.

Cerastus Knights are sophisticated and towering war-suits, faster and more agile than the smaller Questoris class. The Knight Acheron is a fearsome sight on the battlefield, a reaper of lives designed not only to destroy, but also to inspire terror. The presence of a Knight Acheron warns the foe to expect no mercy, for such grim weapons are only deployed for missions of extermination, to topple the works of the enemy and scour clean their lands with flame.

The Predator is perhaps the best known and most widespread variant of the basic Rhino chassis. Augmented with superior armour and firepower, it entirely sacrifices the Rhino’s troop transport capacity in favour of ammunition and generators for its formidable weapon systems. The result is an effective and versatile tank of the line, with an excellent balance of speed, firepower, and protection. The Predator's robust design can field a wide variety of armament configurations – the Legiones standard is a rapid-firing turret mounted autocannon, but other configurations include a powerful heavy lascannon, or more exotic grav and volkite weapons.

Prideful and impetuous, Geigor Fell-Hand is a Thegn of the Space Wolves with a long record of valorous deeds. Yet despite his skill and fury as a warrior, Geigor's record as a commander is marred by a number of battlefield reversals – most notably the loss of his entire war pack while fighting alongside the Thousand Sons, after his allies retreated in the face of an Ork onslaught. Geigor harboured a bitter grudge against the XV Legion for this perceived betrayal – and leapt at the chance to punish them in the Censure of Prospero.

Cerastus Knights are sophisticated and towering war-suits, with speed and agility that far exceeds the lumbering Questoris-class. The Knight Lancer is the most widely-known variant of the Cerastus chassis, held in high esteem by more impetuous House scions. Its protective ion gauntlet and potent shock lance are perfectly suited to duelling titanic foes face-to-face, and such pilots often race ahead to seek glory by vanquishing the enemy's most prized war machines.

The Predator is perhaps the best known and most widespread variant of the basic Rhino chassis, equipped with superior armour protection and firepower, but sacrificing the Rhino’s troop transport capacity entirely. The Predator Support Tank is designed to field a wide variety of armament configurations, allowing it to excel in specific battlefield roles.

Heavy Support Squads provide the Legiones Astartes with mobile, infantry-portable firepower sufficient to bring down hordes of enemy troops or smash armoured vehicles apart with withering hails of fire, combining devastating armaments with all the flexibility of a footsoldier. Volkite culverins emit scorching heat rays that burn through swathes of infantry, while versatile autocannons spit shells that shred troops and light vehicles alike. Lascannons are the most powerful laser weapons available to Legionaries, firing devastating beams to punch clean through tank armour.