Consolidated, revised, had some new ideas:Unit and Formation Structure Within the Legion
The XIXth made a virtue of flexibility, and consequently maintained a relatively sparse command structure. Their Chapter-equivalent bodies tended to be smaller than their counterparts, with task forces being drawn up for each campaign and command given to the captain best suited to the task at hand.
With their preference for flexibility and mobile units, Assault, Tactical or Seeker Squads made up the majority of a typical company. Breachers generally served to defend vessels against boarding actions and secure objectives during assaults, while Terminators were used to spearhead assaults against fortified objectives. Individual squads of Depthstriders and Phantoms were dispersed throughout the Legion as necessity dictated, only assembled in full to meet the direst threats. Indeed, the Depthstriders only fought in four theatres as a single unit over the course of the Crusade, the most recent being the final assault on Qarith Prime. Each time the result was the utter destruction of their enemies.
Given their close relationship with the Legio Cybernetica, the Scions' Techmarines also included a large number of Praevians, who controlled many of the Legion’s bound automata. As such Arkytes, the “Atsakyrios”, held a post among the Scions’ Triumvirate of Forge Lords, and therefore a seat on the Synedrion. Along with the Legion’s Librarians, these officers are largely concentrated among the Déka Battalions. As noted previously, the Apothecarion was exceptionally large, and Apothecaries were dispersed throughout the Legion’s companies.
A Battalion was ostensibly equal to a Chapter, but they varied extensively in size and composition. Moreover they were liable to gain or lose companies as dictated by the needs of different task forces. This obliged the Scions to maintain an extensive body of Munitorum personnel to keep track and ensure that each fleet was adequately supplied. It also gave rise to a tendency among senior captains to adopt a flagship for their own Battalions; the complement of the[u] Hell’s Heart[/i] being largely line companies rather than those of the Legion command.
The Scions therefore existed as a constantly shifting collection of fleets, lacking the camaraderie nurtured by systems such as the Clans of the Crimson Lions, and instead they relied on the warrior lodges promoted by Alexandros to instill true fellowship across company and Battalion lines. While other Legions' structures proved more efficient with regard to supply and command, the Scions’ reorganisation fashioned them into one of the most adaptable forces in the Imperium.Command Hierarchy
While an informal seniority of experience and achievement existed, the 1st through 10th Captains - known as the Déka within the Legion - formally represented the highest echelon save for the Primarch. They typically took charge of large expeditions when Pionus could not lead personally. They included First Captain Antonidas and Fifth Captain Mytikas, who led the Phantom and Depthstrider elites respectively. Along with Inna Santor, the Legion’s venerable Dreadnoughts, the Master of the Apothecarion and other specialist officers, these captains formed the Synedrion which advised Pionus.
While the Déka served in roles roughly analogous to Lord Commanders, at times it became necessary to spread the Legion more thinly, and not every campaign could be overseen by one of the ten. To overcome this potential obstacle, the position of Theatre Commander was instituted by Pionus. It was a temporary role which would either be allocated by one of the Déka or Pionus himself, or in their absence, by a vote of the captains.
This system was meant to ensure that the most suitable commander was selected for any given challenge. It also served to foster a mentality in which the Scions would gladly defer to one another on this basis and combat the danger of excessive pride in their officers, a problem in the days of the old XIXth. A side effect of the custom was that specialist officers, including breacher, assault and recon captains, found themselves in overall command roles far more often than their counterparts in other Legions, even advancing to the lofty heights of the Déka. However, the refusal to use the variety of ranks found elsewhere in the Legiones Astartes did cause misunderstandings and friction at times, with the captains or Lord Commanders of other Legions chafing at the notion of sharing command with or even fighting under a "mere captain".
The blurred line between praetors and captains had little effect on consuls, who typically served under the master of their Battalion. As with every other member of the Legion, their assignment could be arbitrarily altered by the designated Theatre Commander, although the system by which these were chosen encouraged restraint in such matters. An officer who exercised his temporary powers tactlessly or unnecessarily would be subject to the displeasure of his superiors, or his fellows when the votes were cast for command in a later theatre. A few captains are known to have been informally punished in this way; when achievement counted in place of formal rank, the threat of it being withheld proved a potent incentive not to antagonise one’s peers. A system of appeal was maintained to ensure that disputes did not fester. Any complaints by captains were directed to members of the Déka or, in rare cases, the Primarch.
Pionus himself was unusual among his brothers for not maintaining a formal bodyguard. Instead he took a combination of Phantom Assault Marines, veteran squads or Depthstrider Terminators, depending on the circumstances of a battle. This approach extended to the forces he gathered for his own campaigns; four of the Déka served under him during the Laer War, with the rest leading battalions elsewhere.War Disposition
On the Day of Revelation the Scions stood at 160,000 Astartes, dispersed across several fleets. Typically Pionus kept three captains of the Déka at his side, rotating them as circumstances dictated. The rest all led individual Expeditionary Fleets, often delegating command of smaller branches to less senior captains. It is noted that, although no Battalion exceeded 10,000 Astartes in size, each Déka captain maintained a core group of battalions at his side. These fleets were augmented to varying degrees by maniples of automata, often directed by the Legion's Praevians.
The size and composition of each Battalion varied somewhat according to the preference of its leader. For example, Diokles commanded more armoured units than any of his fellows, while Bepheros was known to deploy an unusually large number of sharpshooter companies. Antonidas preferred to command relatively small forces, a result of his penchant for flexibility and his frosty demeanour.
Similarly, Inna Santor commanded a small fleet of her own, usually alongside her brother, overseeing Apothecarion detachments to all other Expeditions undertaken by the Scions. These were usually despatched to any theatres where particularly dangerous or otherwise “interesting” enemies had been encountered. The Master of the Forge, on the other hand, remained on Iona unless he was required on active duty. This only occurred in especially drawn-out campaigns such as the Qarith War.
Dreadnoughts were relatively few in number among the Scions, as underwater actions often made it impossible to save a wounded Legionary. This was what drove the Scions to secure such large numbers of automata. After the Yannatar campaign, they gained the Legio Gojira and Knights of House Toho, vastly increasing their strength. These came with their own powerful taghmata, and the Scions operated in tandem with several Army regiments.
The thinly spread nature of the Legion would save them from total devastation on the Day of Revelation. Although The Drowned took a murderous toll on the force that accompanied Pionus to Untara, less than half the Legion was present. Other ambushes were devised, but most were foiled by the Scions. Antonidas was targeted by a cell of Dune Serpents who had pledged themselves to Icarion, only to overcome his attackers. Realising the situation, he swiftly rallied the various fleets and took charge of the Legion while Pionus was incapacitated. Over the following decades, they would make the enemy rue their failure.
Edited by bluntblade, 18 July 2017 - 11:42 AM.