Developed in the highest secrecy not on Mars, but on Terra, the Leviathan is an alternative development of the highly successful Contemptor; the resources required to produce one being immense, equal perhaps even to an Imperial Knight. Made available to the Legions only in limited quantities before the outbreak of the Horus Heresy, they were highly valued and recognised as savagely powerful siege and hunter-killer units. They placed an onerous and ultimately lethal strain upon their occupants, the Leviathan’s incumbent burning brightly but briefly in their second life. Many in the Mechanicum were deeply uneasy over the design, seeing it as purpose-designed to match and indeed destroy the Mechanicum’s own battleautomata in some future, unforeseen crisis or dispute. During the Horus Heresy, Loyalists with access to Terra were able to obtain new Leviathan Dreadnoughts, although never many, while Traitors and isolated forces were reduced to marshalling their few Leviathans carefully or hunting down the relics of the dead from battlefields to be recommissioned.
| LD | CL | WP | IN | |||||||||||
| M | WS | BS | S | T | W | I | A | LD | CL | WP | IN | SAV | INV | |
| Leviathan Dreadnought (⌀80mm) | 9 | - | - | - | ||||||||||
| Leviathan Dreadnought (⌀80mm) | 6 | 5 | 5 | 8 | 8 | 7 | 4 | 5 | 9 | - | - | - | 2+ | - |
Some weapons strike with such force that they cause terrible wounds that can lay low even the most formidable combatant.
When a model is allocated a Wound inflicted by a weapon with this special rule, it does not suffer only one Wound but instead suffers a number of Wounds equal to the number in brackets associated with the specific variant of this special rule, with all of the Wounds inflicted using the same AP and special rules as that of the initial Wound. Roll to save against each Wound inflicted separately, but note that Wounds caused in excess of a given model’s remaining Wounds do not spill over to other models and are lost. This special rule has no effect on models that do not have a Toughness value.The Space Marines of the Emperor’s Legions are genetically engineered, psycho-indoctrinated warriors with superhuman abilities, and minds and souls tempered for war. Each of the Legions has its own idiosyncrasies and character – the product of their gene-seed and the unique warrior cultures fostered by their masters.
Any unit with this special rule will have a number of additional special rules and abilities specific to their ‘named’ Legion, all of which will be defined in other Horus Heresy – Age of Darkness publications. A Space Marine unit may only have one such ‘named’ rule, e.g., Legiones Astartes (Sons of Horus). Space Marine units from a different Legion may only be included in an army using an Allied Detachment and in conjunction with the Allies in the Age of Darkness chart.Powered by the vast glut of energy from its atomantic heart, many of the more advanced Legiones Astartes war machines entered the field of battle veiled in a protective shroud of energy that could deflect or disperse las bolts and kinetic munitions. Yet, such was the power channelled through this little-understood device that, in death, these engines of war would erupt in fiery ruin, a danger to both friend and foe.
A model with an atomantic deflector gains a 5+ Invulnerable Save and any model with an atomantic deflector and a Wounds Characteristic that suffers an unsaved Wound with the Instant Death special rule is not immediately removed as a casualty, but instead loses D3 Wounds instead of one for each unsaved Wound with the Instant Death special rule inflicted on it. In addition, when a model with an atomantic deflector loses its last Wound or Hull Point, but before it is removed as a casualty or replaced with a Wreck, all models both friendly and enemy within D6" suffer an automatic Hit at Str 8, AP -.The towering Dreadnoughts of the Legiones Astartes were often organised into informal warbands, waiting only for the start of battle to advance and bring death to the foe.
When deployed onto the battlefield (either at the start of the battle or when arriving from Reserves), all models with this special rule in a unit must be placed within unit coherency, but afterwards operate independently and are not treated as a unit.Some warriors are skilled at moving over broken and tangled terrain.
A unit that contains only models with this special rule suffers no penalty for moving or charging through Difficult Terrain.This datasheet has Heavy Support Battlefield Role. Full list of Legiones Astartes units sharing same Battlefield Role follows:
These weapons emit an unstable stream of gravitons that causes a catastrophic implosion at the target point. Such is the power of these weapons that even the strongest of targets is dragged in and torn apart by the forces unleashed, the sheer mass of their armour serving only to increase the power of the detonation.
Instead of rolling To Wound normally with a weapon with this special rule, the controlling player of any model Hit by it must roll equal to or under that model’s Strength Characteristic on 2D6 or it suffers a Wound (Armour Saves and Damage Mitigation rolls may be taken as normal – except Shrouded rolls which may not be used). Against targets with an Armour Value, the attacking player rolls 4D6 for Armour Penetration instead.Driven by technology little understood, even by the initiates of the Mechanicum, these weapons are the bane of the complex war machines of the Horus Heresy. Once such weapons have cut through the target’s armour, their exotic energies and sheer destructive power wreak havoc on the delicate internal machinery of the target.
When a target with an Armour Value is struck by a weapon with this special rule, the amount of Hull Point damage caused by the weapon is doubled.