Skitarii - Notable Events: The combat archives of the Skitarii Legions are so extensive it would take a Lexmechanic a thousand lifetimes to comprehend them. Even the Secutors that assess Skitarii battle doctrine have only scratched the surface. Only the Omnissiah knows the true sacrifice His selfless legions have made in His name:The Flames of Heresy (ca. M31) - During the cataclysmic events of the Warmaster Horus' betrayal, the brotherhood of the Mechanicum is broken apart. In the Heresy's aftermath the Adeptus Mechanicus and the Skitarii Legions are born anew.The Dark Fate of Vheinos (221.M32) - When the Astropathic Choir falls silent upon the Civilised World of Vheinos, Forge World Lucius sends its Skitarii to investigate at gunpoint. The resultant rebellion sees heresy spread like wildfire, just as the Tech-priests had calculated. Within solar days the Skitarii find themselves outnumbered eighty to one -- a ratio high enough to trigger rad warfare protocols. A solar month later the Skitarii leave the planet a lifeless wasteland, its Astropathic duct excised and permanently relocated to one of Lucius' moons.A New Breed of Overseer (802.M33) - House Taranis begins the practice of sending the Nobles that fail to enmesh properly with their Imperial Knights to the Adeptus Mechanicus. Though unfit for a place in Taranis' Knight armies, each of these cyborg warriors -- known as Psychosis-Neuracanium -- are from primaris grade Imperial stock, and prove to be excellent raw material for the creation of Skitarii overseers.Terrorforming of Atasca IV (085.M34)Moirae Schism (ca. M35) - During the dark days of the Nova Terra Interregnum, a terrible secret tears the Adeptus Mechanicus apart. The servants of the Cult Mechanicus were split in two by a doctrine that claimed to be able to read the future in minute fluctuations in the blessed Astronomican. Furthermore, the future the schismatics read in the wave functions spoke of a future age in which the Cult Mechanicus and the Ecclesiarchy were merged as one unified creed adhered to by the entire Imperium. Needless to say, neither body would countenance such a thing and internecine war soon split the Adeptus Mechanicus in two. As a result, the Forge World of Moirae is blasted to dust, but not before the schism spreads throughout the Cult of Mars, the Titan Legions and several Space Marine Chapters with close ties to the Adeptus Mechanicus. Over two thousand standard years of bloody strife pass before the baleful doctrine is considered fully purged.The Grand Hunt (303.M35) - House Raven, having felt the teeth of Eldar raiders from the paradise world of Geminex one too many times, formally petition for Skitarii aid. Twelve cohorts are sent to Geminex, grid-search tactics driving the Exodites and their allies from the planet's sacred places and into the crosshairs of House Raven's Imperial Knights. The Eldar of Biel-Tan retaliate, striking hard from hidden Webway portals. The Skitarii fight on through everything the Craftworld can throw at them. Once hard data has been gleaned from every one of Biel-Tan's war assets, the Skitarii withdraw en masse, leaving the remaining Knights of House Raven to make a desperate last stand.War of Recovery (104.M36) - Patchy reports cite technological wonders on the planets of the Mortuam Chain. Hoping precious STC databases can be uncovered, an Explorator fleet replete with macroclades of Skitarii is launched. This begins an escalating war against an Aeldari counter-invasion that lasts over a standard century. Victory is finally won when the Skitarii use the very weapons they recover against the foe, and several first generation, munitions-grade STC databases are returned triumphantly to Mars.Xenarite Schism (335.M36) - Stygies VIII comes under attack from dozens of Deathwatch Kill-teams when news of the Xenarites' dabblings with alien technology reaches the Ordo Xenos. The Adeptus Mechanicus are forced to employ radical measures in order to survive the ensuing purges.Burning Goliaths (170.M37) - The Skitarii of Graia join the Legio Ignatum ("Fire Wasps") in hunting a trio of Chaos Titans. The traitorous God Engines are brought to battle in the shadow of the mountain-sized Castle Retross, though the Chaos host that spills from its gate slowly begins to tip the balance. Victory is only secured when Skitarii arc weaponry overloads the War Spirits of the Traitor engines. As the castle is razed, its tumbling walls are lit by their giant, flaming corpses.The Occlusiad (550.M37) - The north-western fringe of the galaxy is ravaged by the Apostles of the Blind King, rogue Tech-priests who view Humanity's existence as an affront to the Machine God.Shadow of Silica Animus (335.M38)War of the Golden Cog (785.M39) - The Fabricator-General of Mars claims ownership of the riches of the Fortress of the Soulless, lair of the Culexus Temple. A disastrous civil war between Mars and Terra is averted by a sniper's bullet, but the artefact known as the Golden Cog is left in Skitarii hands.Fires of Conscience (009.M40) - The rogue Tech-priest Veriliad, after leading his Skitarii to a stomach-churning victory during the Cremation of Alcadia Secundus, knowingly destroys the STC database for Phosphex Weapons, also called Phosphor Weapons, a tech-heresy for which he pays with his life.Gothic War (139.M41)The Forbidden Runes (664.M41) - After the disastrous Battle of Elixia, Skitarii survivors are sent to extract the runic inscriptions upon the ancient standing stones of Grave's End. In doing so, they open a long-forgotten gate into the Warp. Elixia is consumed by a daemonic invasion, its remaining populace subject to Exterminatus within the solar week.The Death of Tyran (745.M41) - A terrible new foe looms from the void. On the far reaches of the Eastern Fringe, the Adeptus Mechanicus research station of Tyran Primus comes under attack from the Tyranid threat. Despite a stalwart defence by Magos Varnak's Skitarii cohorts and an entire regiment of Astra Militarum, the planet is conquered and its biomass devoured in short order. Varnak manages to compile a data-codex that reveals the dread truth of the planet’'s last few solar hours and fires it into space before triggering the outpost's runes of ending.War of Neotech (747.M41) - The T'au settlers of Vesh'yo find themselves fighting for their lives against three Skitarii Legions. There the ancient weapons of the Adeptus Mechanicus are pitted against the clean, cutting-edge technology of the T'au Empire. War Cohorts from another eight Skitarii Legions are deployed before victory is finally secured. During the clean-up operation, six star freighters full of Tau war materiel find their way back to the Forge World of Tigrus.Rain of Fire (748.M41) - After the Battle of Macragge, a splinter fleet of Hive Fleet Behemoth winds its way into the Skitarii-held Daugel Helix. Using the knowledge recovered from the Tyran data-codex, the Skitarii fight back. The Cohort commander Alpha 9-Thyrrc turns the tide by saturating a stratum of the atmosphere with gas from the planet's promethium refineries. After his Onagers' neutron lasers set the skies aflame, each new rain of Tyranid spores incinerates those xenos planetside instead of reinforcing them. A triumphalist data-codex is compiled and sent to the nearby Forge World of Accatran, where it is swiftly filed away in the Archive Anomalis and forgotten.The Curse Entropic (865.M41)The Unknowable (991.M41) - Skitarii from Stygies VIII are sent to the diluvian-class world of Magogue when the planet's industry dries up its oceans to reveal Necrontyr architecture. The Skitarii fight valiantly against the Necrons of the awakening tomb complexes, allowing the planet's islander people to evacuate to a man, but are badly outmatched. Only their commanding Tech-priests, hunting for knowledge behind the lines, escape the ensuing carnage. However, in doing so they clash with Trazyn the Infinite. One by one the Tech-priests are collected in stasis fields and displayed as part of a monument to Magogue's fall.Ultimate Power (998.M41) - Clues to the location of the Omnicopaeia are uncovered upon Hell's Teeth, a Daemon World on the edge of the Maelstrom. The Omnicopaeia, an arcane device that contains every STC database with a psychic component, is of immeasurable value. Many billions of Skitarii are despatched to Hell's Teeth with all haste. The entire Adeptus Mechanicus is abuzz -- should the legendary Omnicopaeia be found, they will finally have a way to control, precipitate and even weaponise Humanity's psychic dawn.