Solar Auxilia - Ranged Weapons: Archaeotech Pistol - Despite the renaissance of Human power in the galaxy that the Great Crusade created, there remains much of Mankind's ancient might and arts that is lost to myth and legend, save for a few relics that survived Old Night. One of the more common types found are sidearms of surpassing firepower and elegance. Be they bespoke slug throwers utilising micro-atomic munitions or searing kill-rays that draw power from a planet's ambient magnetosphere, such priceless archaeotech artefacts of war find their way into the hands of the Emperor's chosen agents and the most senior officers of the Solar Auxilia.Demolisher Cannon - A short-ranged but destructive weapon designed for line-breaking and smashing enemy fortifications, the huge rocket-propelled shell fired by the Demolisher Cannon is enough to pulverise bunkers and collapse buildings around their defenders in a tide of rubble and dust.Solar Auxilia Support Weapons - The Solar Auxilia utilise a variety of support weapons as needed, including shell-firing heavy guns of different calibres, directed energy weapons and missile launch systems.Graviton Weapons - Little understood even by the Tech-priests of Mars, the term "Graviton Gun" refers to a group of gravity projector devices whose sophistication is such that the few that now remain are relics of a lost age. Such weapons prove extremely useful when fighting on a starship or in a null gravity environment. The power of the Graviton Gun's highest settings is sufficient to rupture organs and crack bones even inside armour, but its primary use is to impede the enemy and damage machinery without the risk of secondary explosions.Irradiation Projector - "Irad" or "Rad" Projectors are potent anti-personnel weapons and relics of the Dark Age of Technology used exclusively by the militant forces of the Mechanicum. They commonly comprise a bulky generator unit terminating in a dish-like projector that unleashes a powerful blast of deadly cross-spectrum radiations. Victims caught in the blast of such a weapon suffer an appalling death as they are boiled alive from within -- their tissues blasted apart on a cellular level. Thick barriers of solid matter between the beam and the target provide some protection from this effect, though victims who survive the initial blast will often die later of extreme radioactive contamination.Lightning Gun - This aptly named weapon takes the form of a baroquely designed carbine either connected to a micro-reactor or, in the case of an Ordo Reductor Thallax, its wielder's own cybernetic power core. It fires an ionizing las-beam down which a powerful phased discharge of electromagnetic force is unleashed, and is equally effective at slaughtering the living and overloading machine targets.Mauler Bolt Cannon - A field-support weapon found within Skitarii Tech-Guard formations and mounted on certain Battle-automata, these baroque and bulky automatic cannons differ from the more common Heavy Bolter only in calibre, with the Mauler using substantially larger and denser shells, with a proportionally larger and stronger gun-frame needed to handle the firing stresses involved. These are powerful weapons whose secrets were jealously guarded by the ancient Mechanicum.Needle Pistol - A favoured weapon of the assassins of the Terran Courts during the days before Unification, Needle Pistols are sophisticated and elegant handguns whose operation is silent, invisible and deadly. The finest examples use a combination of a flashless laser to pierce flesh, followed by an impellor-shot of virulent poisons delivered instantaneously into the open wound. This combination can lay low the toughest foe with ruthless efficiency.Photon Thruster Weapons - The arcane secrets of these deadly but unstable beam weapons are jealously guarded by the adepts who hold them, leading some to believe the technology is xenos in origin. When fired they unleash howling, needle-thin beams of utter blackness able to pierce the densest matter, slashing and slicing armoured men and machinery apart like razors, leaving pulsing waves of darkness in their wake. The exotic power sources of these unearthly weapons are extremely unstable, and catastrophic failure can lead to their firers being consumed by raging black flames until only dust remains.Plasma Weapons - Such technology was far better understood during the dawning age of the Imperium, if still somewhat unsafe. As a result, three additional rarer types of sophisticated plasma weapons, such as the Plasma Blaster, Phased Plasma-Fusil, and Executioner Cannon, would become all but unknown in later ages.Rotor Cannon - Favoured by many Imperial Army formations, Rotor Cannons are multi-barrelled Stubbers, using electric motors to maintain an extraordinary rate of fire from their spinning barrels. The simple, medium-calibre solid slug projectiles they fire lack the power of bolt shells, but the hail of shots they unleash can be particularly useful against unarmoured hordes of foes and fleshy xenoforms. The newly prototyped Assault Cannon technology represents a more effective and powerful implementation of this principle.Volkite Weapons - "Volkite" is an arcane Martian term for a variety of powerful ray weapons whose origins date back to the Age of Strife. Possessed of considerable killing power surpassing most armaments of their size, Volkites were difficult to manufacture, even for the most able of the Mechanicum's forges, and the demands of the expanding Great Crusade swiftly overwhelmed the supply of these relic guns. Once relatively common within the fledgling Legions, they had fallen largely from favour by the time of the Horus Heresy, and had been superseded in the Space Marine Legions by the far more flexible and utilitarian Terran boltgun. Those few that remained in service were the purview of only a few specialised units at the outbreak of the conflict that rent the Imperium asunder.Grenade Launcher - The Grenade Launchers used by the Solar Auxilia are advanced, selective fire weapons proofed for use in void conditions and able to deploy a variety of munitions types not normally encountered in the Excertus Imperialis.