One of the most heavily armed and armoured of all knight chassis in service, few Households were able to muster Acastus armours, even at the height of the Great Crusade. The Knight Porphyrion variant in particular served often as the supreme enforcer of the rule and dominion of a Household over its scions, though for some its bulk and the selection of a purely ranged armament - no matter its magnitude - was a drawback which could not be overlooked. Others stressed that the size and power of the Porphyrion, rivalling that of a scout-class titan, pushed the limits of what a single human mind could interface with.
| Armour | ||||||||||
| M | WS | BS | S | Front | Rear | I | A | HP | ||
| Knight Porphyrion (⌀170 x 109mm) | ||||||||||
| Knight Porphyrion (⌀170 x 109mm) | 10 | 3 | 4 | 10 | 14 | 11 | 2 | 3 | 18 | |
Huge artillery cannon and vast laser weapons are commonly employed as the primary armament of the greatest war machines of the Imperium. These weapons are devastating when properly braced and prepared for firing - more than capable of destroying smaller war engines in a single blast.
Weapons with the Ordnance (X) Special Rule double the value of a Characteristic when Stationary.Designed to pierce the armour worn by heavy infantry, some weapons have gained a fearsome reputation on the battlefields of the Floras Heresy. While many such weapons are rare or temperamental in use, the sheer power of their attacks more than makes up for this.
With a Weapon that has the Breaching (X) Special Rule there is a chance that a Wound Test may result in the Wound ignoring Armour Saves.The [Allegiance] Trait is used in the following Questoris Familia datasheets:
The [Questoris Familia] Trait is used in the following Questoris Familia datasheets:
Volatile fuel, overpowered reactors or dangerous munitions can cause some war engines to explode when destroyed. Such explosions can prove devastating to friend and foe alike.
A Model with this Special Rule can explode and cause Hits to nearby Models and Units.Some weapons are so heavy that, while they can be fired on the move, are more powerful when properly braced and made ready before shooting. Warriors on the battlefield must use their judgement to decide when speed is required and when the full firepower of their arsenal must be unleashed.
Weapons with the Heavy (X) Special Rule gain +1 to a Characteristic when Stationary.Some weapons trade precision for indiscriminate destruction, high explosive impacts that can devastate a wide area. From artillery shells to high energy blasts, such weapons are popular tools of destruction on the battlefields of the Horus Heresy.
Attacks made with the Blast (X) Special Rule use a Blast Marker to determine how many Hits are caused.Blasts of exotic radiation, malignant scrap-code or other targeted attacks can render the systems of complex war engines vulnerable without penetrating their armour. While such weapons are less likely to leave their target as a broken ruin, the deleterious effects of their attacks can render even the most powerful war machines impotent.
Weapons with the Shock (X) Special Rule have a chance of inflicting Statuses on Vehicles even if it does not penetrate their armour.This datasheet has Lords of War Battlefield Role. Full list of Questoris Familia units sharing same Battlefield Role follows:

These sophisticated energy screens rely on ion fields to deflect the path of solid projectiles or to diffuse high-energy beams before they strike their target. Highly effective in battle, the main limitation of these devices is the immense energy drain required to keep them functional, and as such only the largest war engines can rely on their protection.
Ion shields provide a different Invulnerable Save against Shooting Attacks made against a Model’s Front and Rear Facings, including against Glancing Hits.Some vehicles are either fitted with sophisticated auto-repair systems, or are simple enough in construction that their crew can effect repairs in the field. Such vehicles are able to shrug off minor damage that would otherwise reduce the fighting ability of their war machine.
A Model with this Special Rule has a bonus to Repair Tests to remove Statuses.Heavy beams and armour-piercing cannon rarely inflict superficial damage, but always blast and break the hull of their target. Such weapons are superior tank killers, their sheer power prized over lesser weapons when the objective is to apply maximum damage without concern for finesse.
A Weapon with the Armourbane Special Rule counts Glancing Hits as Penetrating Hits.Most combat aircraft fly at such speeds that regular weaponry is hard pressed to track or hit them. Only cannon and beams specifically designed to strike such swift targets have any hope of landing hits upon them by any means other than sheer luck.
Attacks made with the Skyfire Special Rule ignore penalties when attacking Flyers.| Ranged Weapon | |||||||
Ranged Weapon | R | FP | RS | AP | D | Special Rules | Traits |
| Neutron-wave battery | |||||||
| Neutron-wave battery | 120 | 4 | 12 | 2 | 4 | Ordnance (D), Armourbane, Shock (Stunned) | Las |
| Ranged Weapon | |||||||
Ranged Weapon | R | FP | RS | AP | D | Special Rules | Traits |
| Ironstorm missile battery | |||||||
| Ironstorm missile battery | 72 | 2 | 5 | 4 | 1 | Ordnance (D), Blast (5") | Missile |
| Ranged Weapon | |||||||
Ranged Weapon | R | FP | RS | AP | D | Special Rules | Traits |
| Autocannon | |||||||
| Autocannon | 48 | 2 | 7 | 4 | 2 | Breaching (6+), Heavy (FP) | Auto |
Intended to break the lines of the foe or to hold the most dangerous of positions, heavy troops trade speed and manoeuvrability for indomitable toughness and stubborn tenacity.
The following Rules apply to all Models with the Heavy Sub-Type:Acastus knights were among the largest classes of knights in existence, their Thrones Mechanicum pushing human capabilities for machine interface and their massive bulk causing them to operate more akin to the massive constructs of the Titan Legios than their knightly peers.
A Model with the Colossus Special Rule changes elements of the Knight Sub-Type regarding bases, Line of Sight, Firing Arcs and Armour Facings.Whether by means of advanced targeting cogitators or by merit of numerous crew, each tasked with manning a separate gun, some armoured vehicles are capable of targeting numerous foes simultaneously. The hail of fire such vehicles can project far outweighs the lack of focus in their volleys.
Models with this Special Rule can shoot at multiple targets at full Ballistic Skill.| Ranged Weapon | |||||||
Ranged Weapon | R | FP | RS | AP | D | Special Rules | Traits |
| Lascannon | |||||||
| Lascannon | 48 | 1 | 9 | 2 | 1 | Heavy (D), Armourbane | Las |
Some weapons feature augmented motility and enhanced targeting systems, able to track and lock onto fast moving targets with ease.
Weapons with this Special Rule are better able to utilise it for intercepting new arrivals on the Battlefield.| Ranged Weapon | |||||||
Ranged Weapon | R | FP | RS | AP | D | Special Rules | Traits |
| Hyperios missile launcher | |||||||
| Hyperios missile launcher | 48 | 3 | 7 | 3 | 2 | Skyfire, Rapid Tracking | Missile |