A little thing I've been working on. Might be of interest to some of you folks.
Primarch’s Name: Gwyliroth (the starhawk)
Homeworld: Cadarn (mountainous death world)
Background: Fighter
Psychic Potential: Low
Gene-seed: Stable
Talent: Marksmanship
Legio I: Astral Sentries Legion
Colours: Light blue, white trim, cyan highlights, gold ornamentation, red denotes higher-ups
Battle Cry: In our sights!
Insignia: A skull caught in roughly star-shaped crosshairs
History:
Once, Cadarn had been a beautiful world, with glorious shining cities built upon mountaintops connected by great hovering bridges. The people lived in harmony with the various creatures of the crags and cave systems, protected and tended to by a vast array of robotic servants and guardians.
The collapse of their society was almost inevitable. One of the cities, Caerllamph, unleashed a virus that made the robotic servants of other cities act violently towards human life in an attempt to become the dominant state
on the planet. Although they kept their synthetics protected from the virus, the constant unwavering assaults from the rogue robots eventually broke through their defences and consigned them to the same fate.
The remnants of humanity upon Cadarn were forced to eke out a pathetic life, scavenging the ruins of the charnel-cities, constantly migrating whilst watching for predators such as Starhawks or dwelling in caves at the mercy of Blindwyrms and other beasts.
One such clan, a family who haunted mountain peaks in search of birds’ nests to raid, discovered the pod that carried Gwyliroth. They raised him as their own, but even at a young age he was very different. Where they were cowardly and frightened, he was bold and fearless. Where they carried little more than ropes and climbing gear, he made himself a great longbow out of lattanwood with arrows as long as a man's arm fletched with starhawk feathers. He began to hunt animals, bringing well-needed nourishment to his egg-eating clan.
One day, he returned from a hunt to find his clan massacred, hunted down by one of the rogue robots they had evaded for so long. The mechanical monstrosity stood hunched over their bodies like some ghoul of legend.
In a heartbeat, he had drawn his bow and loosed an arrow into its head, destroying the primitive positronic brain.
As he tore the body apart to make what use of the components he could, he swore that no more would suffer as he had.
Over the next twenty years, he travelled the planet, killing every robot he came across. He directed clans he found towards one of the first cities he cleared out; telling them that there was strength in unity. With him as their watchful guardian, the people of Cadarn prospered once more.
When the Emperor found Cadarn, Gwyliroth gladly joined his side at the head of the First Legion, renaming them as the Astral Sentries 'to keep a watchful eye on all the stars of the galaxy, to keep the Imperium safe from her enemies.'
Throughout the Great Crusade, the First Legion made an exceptional accounting of itself, bringing the third highest number of worlds into the Imperium after the Hounds and the Snakes. They brought down the Interex when diplomacy failed, and many of them adopted the powerful energy-bows of their foe - not least of all Gwyliroth who claimed the largest and most powerful for himself.
In the war against the Empire of Urlakk Urg, it was the Sentries who took down the Grand Warboss's lieutenants across his realm, pushing them into anarchy.
Their loyalty to the Emperor was so renowned that the traitors never even considered trying to turn them to their side - not least because of Gwyliroth and the Cadarnites' well-known hatred of Mihai and the Truthseers for their usage of divination. They were too far away to be called upon for the assault on Wystone, and as such did not suffer the massacre that fell upon the Revenant Wardens, the Dread Arbiters, the Brazen Knights and the Abyssal Shades.
However, they were not to be left untouched by the Heresy. Ceyec diverted the entirety of the Tenth Legion, the Bearers of Good Will, to attack Cadarn and remove the most loyal legion from the war.
A rogue astropath managed to send a garbled warning to Gwyliroth, whose paranoia served him well enough that he prepared for an attack, despite the seeming impossibility of having to fight fellow Space Marines. He prepared fortifications, called back all his soldiers, began recruiting every able-bodied man and woman on the planet and sent the Seventh Grand Company, which was the best trained in void combat, to intercept them and buy the rest of the Legion time.
Although the Bearers outnumbered them, both in terms of Astartes and Auxiliaries, he felt certain that the hostile terrain, his people's knowledge of it and the unerring aim of his soldiers would see off Krielen and his warriors. In all probability, had he merely been facing Astartes and poorly armed mobs, he would have been correct.
But the fleet that exited the warp near Cadarn was not as it was when Gwyliroth saw them last. The grand ornate ships seemed diseased, somehow. The metal seemed slick with mucus, pustules blossomed from them like some horrible fungus, and figureheads were rotten and necrotic. The flagship of their navy, the Open Hand, seemed to throb irregularly like a diseased heart. Viscous, clotted blood, sickly pus and thick sputum dripped from its guns. There was no sign of any damage that could have been caused by the Seventh Grand Company.
The defence fleet fought valiantly against the invaders, but the ships seemed impossible to destroy. Hull breaches would scab over and formed strange metal scar tissue and their guns belched out foul, sickly rounds that could infect other ships.
Despite the best efforts of the loyalists, the Bearers and their auxiliaries landed upon the soil of Cadarn. They too, were changed beyond belief. The auxiliaries shambled out of stormbirds and valkyries, their skin sickly green, their bodies rotting and decomposed, missing eyes, noses, ears, digits, limbs - many could barely hold a gun; pestulent beastmen hobbled out, covered in pustules and welts, their fur matted and mangy; malformed Sea Devils and Silurians with twisted beaks and jaws, their scales bleached and hanging limply off them; and rust-covered Cybermen, oily black cerebral fluid dripping from orifices. Worse were the Space Marines themselves. Their armour was bloated and malformed, cracked and calloused. Some did not wear helmets, or their helmets had fused with their faces and with many it was impossible to see where the Legionnaire ended and his armour began. The apothecaries, still barely recognisable for their white helms, were hunched over with great roiling bags of some vile liquid on their backs. The arms that had once held Nartheciums were stretched and diseased, the medical kits now part of the single marine-beast. Great fat flies buzzed around them, bloated rats and cockroaches scurried at their feet, maggots and leeches gnawed their way in and out of flesh.*
Even the corrupted Astartes, as foul and unholy to the eyes of their cousins as they were, were not the worst act in this carnival of horrors. Alongside the auxiliaries and Astartes walked foul creatures that hurt the eyes to look at. Some looked humanoid, but their bodies were distended, hunched and misshapen, their faces cyclopean with great bloodshot eyes and leering grins, horns sprouted from them like corpse-flowers and their guts had burst from their abdomens to trail on the ground. With them walked huge, bloated things that could barely move under the weight of their own rotting bodies, of huge calcified horns and great rusted blades. Great flies that looked more like winged organs than insects circled lazily above them, strange, ugly hound-slugs loped cheerily amongst their ranks, stalking, skeletal rat-men with crowns of spikes trod purposefully forward and walking balls of pus and filth scurried at their feet.
The defenders steeled themselves in their watchtowers and castles, and prepared for battle. At first, the legion stayed in their fourteen mountain fortresses - one for each Grand Company, where they were safe from all except the great flies, rotting assault teams and the sickly aircraft of the Bearers. They hoped to simply outlast the siege, but soon the corpses of their enemy filled the valleys to such a degree that their forces clambered up mountains of their own dead to assault the fortress. Pwlych of the Twelth was the first fortress to fall, swamped by endless waves of cultists. Ysberin of the Fifth was next, its defenders laid low by some twisted malady that overwhelmed even Astartes. Rhisiart of the Second was broken open by Wonodir Krielen himself, as twisted as any of his warriors with great horns growing from his skull and cancerous growths, and the brave warriors within overwhelmed by a great swarm of rats and roaches. The insulting moniker 'Vermin King' seemed darkly appropriate to Gwyliroth as he saw the citadel fall.
The isolated cities began to fall as well, their people converted by the same fanatic-plague that coursed through the bodies of the Bearers and their Auxilia or mutated into vile imitations of a Space Marine by the Apothecary-Horrors of the unholy Tenth.
Gwyliroth changed strategy, taking inspiration from the tactics of Junggar Redonis and Shai-Barag, and ordered his forces to focus on aggressive defence. Assault teams and teleporting Terminators lured mobs of their enemies away from the fortresses before gunning them down, aircraft took to the skies to draw away rot flies and other aerial foes so that they could be destroyed elsewhere, and the Primarch himself left to confront his brother. Gwyliroth hunted Krielen across the planet, and wherever he went, he brought death, with even the Great Unclean Ones unable to stand before his pinpoint accuracy and the strength of his great bow.
One day, the Bearers of Good Will left the planet, leaving Cadarn choked with the dead bodies of cultists and plagues that ravaged its surface. The Sentries retreated to lick their wounds. From the 130,000 Astartes on the planet beforehand, they were now down to less than 10,000, nine of the great fortresses had been breached, the population of the planet had been reduced to one percent of what it had before the invasion and the flora and fauna of the planet were decimated. They did not learn of the fate of the Seventh Grand Company until later, and the discovery that their soldiers had fallen to the Changer of Ways was of great shame to the loyalists.
Gwyliroth and the First Legion never took part in the Battle of Terra, as they had been too wounded by the invasion to even consider it. Once the corpses had been burned, the cultists exterminated and the epidemics cured, the Primarch of the Astral Sentries returned to Terra to take part in the New Council. He was for the splitting of the legions into smaller Chapters, and personally split several of his own Grand Companies to become Chapters of their own to guard the Eye of Terror. Those founded from the Sentries collectively call themselves the Watchers against the Dark and there is a noted enmity between the Watcher Chapters and the Bearers of Good Will, with Plaguelord Sharo Vrijstein leading a devastating attack against Cadarn in imitation of his Primarch in M35. The Watcher Chapters, along with the Gatekeeper Chapter, are the first line of defence against
Gwyliroth himself disappeared in M33, swearing he would avenge the dead of his planet. Sometimes, corpses of Nurglitch warriors or Necrontyr are found with all the marks associated with an energy bow when no user has been near. The legion holds these are signs that Gwyliroth is out there, and will one day return.
Legion Organisation:
The Astral Sentries use the traditional organisation system introduced by the Thunder Warriors - 14 Grand Companies, each with 10,000 soldiers, subdivided into 1,000 strong Battalions, then 100 strong Companies and finally 10 man squads.
A unique position is that of Chief Marksman, assigned to the best shot of a squad. The rest of the squad are meant to act as spotters for him, highlighting particularly tricky or high-value targets for the Marksman to dispose of.
Assault squads do not fulfil the same purpose as they do in other legions, instead acting as mobile sniper units that can mark targets in cover for other squads and can quickly gain advantageous terrain.
The best marksmen in the legion form the Primarch's personal guard, the Teulu, who are often gifted Interex energy bows.
Since the Splitting of the Legions, little has changed in the organisation of the Chapter asides from the downsizing and the redefining of the Teulu from the Primarch's guard to the Chapter Master's guard.
Combat Doctrine:
The Astral Sentries rely heavily on ranged firepower and marksmanship in war. They shy away from melee combat, thinking of it as a failure on their part if the enemy manages to close with them. They put emphasis on elimination of commanders and destruction of command and communication structures.
Their weapon load-outs mirror these tactics, with scopes, sniper bolters and other vision enhancers being extremely widespread.
Librarians mostly use their psychic powers to expose enemies and nullify the powers of enemy psykers, the Astral Sentries taking a dim view of divination.
They use less vehicles than most legions and are especially lacking in bikes, but do have the unique sentinel variant known as the Tallwalker. The Tallwalker is essentially a mobile sniper platform that supports one of the extremely powerful Decapitare sniper bolters, a gigantic rifle that is too large even for a space marine to carry.
The legion has few Dreadnoughts, and those they do have are normally designed for suppressing fire, hefting heavy bolters and autocannons.
Legion Beliefs and Practices:
The memories of the constant fear of hunting robots or ravenous Starhawks are still fresh in the minds of many recruits to the legion, and the state of alert watchfulness caused by it is symptomatic of the First Legion. It also means that they have a deep distrust, bordering on hatred, for robots and cyborgs. They fight alongside forces of the Mechanicus or the Cyberlegions as little as possible. Augmetics are looked down upon, and techmarines are considered a necessary evil.
Another Cadarnite fear that has transferred to the Legion is their absolute terror concerning divination or any attempt to read the future. The people of Cadarn believe that trying to discern forthcoming events or to see one's fate is to invite great misfortune and ruin upon one's self. Worse than that is the punishment for trying to actively change the future - it is believed that the devastation of Cadarn was indirectly caused by someone altering their fate.
Some more positive traditions have survived as well. Astartes are expected to take trophies from what they consider their best kill. These are rarely large, normally being a tooth or a finger, and are traditional woven into their ceremonial red cloak. In the words of Kayon Maturax, "A Sentries ceremony looks like an explosion in a taxidermist." Gwyliroth himself wears a cloak of starhawk feathers, and his helm is embellished with the skull of a great Blindwyrm.
They also retain a strong musical tradition, being instrumental in bringing long lost melodies back into hearing once again. The traditional Cadarnite instrument, the twenty-three string harp, is played by many Legionnaires.
The most famous and most important ceremony is the Feast of the Wind, a tournament to find the best marksmen in the legion. Legionnaires are encouraged to beat the Primarch's record of a perfect bull’s-eye with his longbow from the top of Mount Annwll on a target on top of another mountain. So far, only Captain Tyleuth, First Chapter Master of the Astral Sentries, has even come close. Since the Splitting of the Legions, the Feast of the Wind has been a place for all the Watchers, and even some other Chapters, to come and enjoy the company of friends or to show off their aim.
Recruitment and Flaws:
The Astral Sentries recruit mostly from Cadarn, though on occasion they will recruit from populations that fulfil certain criteria. Despite the best efforts of the Bearers of Good Will, the gene-seed of Gwyliroth is stable, although it shows less psychic potential than usual. The Legion's fortress-monastery, Gwaelowch, is built upon the ruins of a city on Mount Annwll, the highest mountain on Cadarn. Recruits must climb this mountain before they can be considered for entry into the Legion.