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26th Founding (738.M41)
Raven Guard (Suspected; Unconfirmed)
Corvus Corax (Suspected; Unconfirmed)
Dark Green, White and Red
- "Knowledge is half the battle."
- — Saying of the Mentors Chapter
The Mentors, sometimes referred to in Imperial records as the Mentor Legion, are a Loyalist Codex Astartes-compliant Space Marine Chapter of unknown origin created during the 26th Founding in 738.M41, making them one of the most recently founded Chapters in the Imperium of Man. Little is known about this Chapter in Imperial records, though the Mentors are known to be a reclusive and suspicious Chapter of Astartes who no longer trust other Space Marine Chapters or the Imperial government, preferring to work alone and unobserved by all save the foes of Mankind and the Emperor. Despite the Imperium's records, the heritage of several Space Marine Chapters is only implied from their particular doctrines and beliefs. The Mentors Chapter, for example, have no official progenitor, but their insular nature and preference for launching precision strikes supports widely held beliefs amongst the Administratum that they are a Raven Guard successor. Imperial records indicate that companies of the Mentors are currently engaged against the Eldar of the Biel-Tan Craftworld as well as the Orks of the Charadon System.
Often referred to as the "Mentor Legion" in Imperial records, the Mentors are a 26th Founding Chapter created from an unknown source of gene-seed in 738.M41 and are the second Chapter of Astartes to be designated number 888 (the first being the now-lost Star Scorpions). This came about because the Star Scorpions, a Chapter created during the 25th Founding, suffered from both the misfortune of producing redundant gene-seed and had the terrible misfortune of becoming lost in the Warp and being utterly devastated by very powerful Warp entities. Though the Star Scorpions' ultimate fate remains unknown to the Imperium, the High Lords of Terra, acting in the name of the Emperor, declared the Chapter lost. While stocks of the Star Scorpions' gene-seed had survived the loss of the Chapter, the high rate of mutation found within it made it useless when the Adeptus Mechanicus moved to try to reconstitute the Chapter, and eventually the Magos Biologis and their chem-architects were forced to concede defeat. For a time it seemed that Chapter Number 888 would never be raised again, but some years later, with a new Founding in the offing, the Mechanicus was persuaded to revisit the Chapter regalia. Thus, during the 26th Founding, the Mentors Chapter was born. They received the Chapter colours and number of the extinct Chapter but instead of the Star Scorpions' redundant gene-seed, they were granted an entirely new generation of Astartes genetic material collected from the storage banks of Terra's gene-laboratories and drawn from an unknown Chapter.
- Golance War (987.M41) - The Flesh Eaters Force Commander Isiah was in charge of the campaign on the world of Golance to prosecute a war against encroaching Eldar. Unable, after numerous attacks, to rid the planet of the troublesome xenos who had gained control of the world's secret arsenal, the Chapter was at its lowest ebb, having suffered the loss of 350 men and officers at the hands of the manipulative and treacherous Eldar. The Flesh Eaters finally received relief in the form of five Astartes of unparalleled skill from the Mentors Legion to deal with the vile Eldar scum and change the course of the war.
- Biel-Tan (Unknown Date.M41) - Imperial records indicate that elements of the Mentors Chapter are currently engaged against the Eldar of the Biel-Tan Craftworld.
- Battle of Charadon (Unknown Date.M41) - Several whole companies of the Chapter are currently deployed alongside the Imperial forces engaged against the massive Ork WAAAGH! in the Charadon System.
The Mentors Chapter is roughly organised in much the same fashion as the Ultramarines. However, the bulk of the Chapter is never seen by outsiders as the location of their homeworld and fortress-monastery is an absolute secret. Only the very highest Tech-priests within the hierarchy of the Adeptus Mechanicus are aware of its exact location. It is within that hidden location that the Mentors perform their rigorous training and disciplining. The massed ranks of the Chapter are exhaustively trained in the art of war and in the use of Imperial military hardware, both old and new, as the Chapter's primary purpose is to act as a test-bed for the latest Imperial military technology developed by the Mechanicus. While a large proportion of the Chapter's Astartes are permanently based at their secret headquarters, the balance of the Chapter is sent out on missions intended to shore up weak points in the Imperium of Man's defences. The Mentors also deploy their Battle-Brothers primarily as one of two special formations:
- Tutors - The typical Mentors squad is organised around the archetypical Codex Astartes-approved ten man squad. In addition, the Mentors uphold the tradition of splitting into two groups of five Battle-Brothers each when in battle. Each of the ten men in the squad is a Veteran Battle-Brother known as a "Tutor". There is no acting Sergeant in charge of the squad, as each Space Marine holds the same rank and any of the ten may be nominated to lead, or two leaders may be selected if the squad is split into the two, five-man squad formation.
- Elite Cadre - Another facet of the Mentors is the development and training of the Chapter's Elite Cadre. It was originally envisaged that these specialists would perform a number of important semi-military roles, from counter-terrorist operations to undertaking complex undercover special forces missions. The Elite Cadre of the Mentors Chapter are the most advanced warriors of their kind within the Adeptus Astartes. They are usually deployed to achieve highly specialised military objectives that would normally be considered the role of special operations troops or commandos in other forces, such as counter-terrorism, demolitions, infiltration and reconnaissance deep in enemy territory. Elite Cadre members expect to be deployed to deal with threats that lie outside the scope of a Space Marine Chapter's standard tactical doctrines, much like a Deathwatch Kill-team. When squads of the Elite Cadre are deployed to aid Imperial Commanders across the galaxy, they are either used as traditional special operations troops to carry out crucial missions that other warriors cannot or they are broken up, with each Astartes used as a force multiplier by becoming the commander of an individual unit of frontline combat troops. They serve as the Imperium's ultimate special operations warriors, intended to be capable of dealing with any threat outside a normal Chapter's expertise, though this aim has not been fully realised as yet. Each member of the Elite Cadre is a formidable senior Veteran Battle-Brother of the vaunted 1st Company. These members represent the pinnacle of their Chapter's success to date. There are distinctly fewer Elite Cadre Astartes within the Chapter than normal Mentors Battle-Brothers, but what they lack in numbers they compensate for in sheer power, skill and application of advanced hardware. Those chosen to become a part of the Elite Cadre are selected due to their advanced training, adaptability in battle and lateral thinking in strategic and tactical acumen. Elite Cadre Astartes seconded to other Imperial forces are often employed as squad leaders as they make especially effective commanders of Imperial Guard or Planetary Defence Forces units. The Elite Cadre are also frequently called upon by the Inquisition which recognises their superior skill at arms. The Mentors are also known to second their Elite Cadre members to other Space Marines Chapters allied with them, where their expert guidance and mastery of the military sciences enable other Astartes to achieve a unique level of knowledge and skills that will help them spread the light of the Emperor to the darkest corners of the galaxy. The Elite Cadre are also used by the Adeptus Terra for a variety of small-scale special operations that call for the deployment of a small group of elite troops rather than the conspicuous might of an entire Space Marine force.
Chapter Combat DoctrineEdit
- "One war, one Cadre"
- — Nisk Ran-Thawll
The Mentors Chapter is highly unusual amongst their fellow Space Marines and their modus operandi is quite different from that of the bulk of the Adeptus Astartes. The Mentors do not fight as a single force or even usually as full companies but instead second squads drawn from the Chapter's companies to supplement other Imperial military forces. This is because one of the unusual traits of Mentors Astartes, which may derive from an unforeseen mutation within their gene-seed, is that every Mentors Astartes possesses a near-genius ability to observe, memorise and adapt to any situation. This extraordinary capacity for learning is especially true in all matters military. The Chapter's main pursuit is therefore one of perfecting the fusion between the fruits of military science and the art of war. This extraordinary boon means that every Mentors Astartes is the equivalent of a professor of military science and military history with many standard years of combat experience. As a result, squads of Mentors Space Marines can serve as force multipliers when they are embedded in other Imperial military forces, such as with the regiments of the Imperial Guard or the starship squadrons of the Imperial Navy. Mentors Space Marines are thus deployed at the request of the various Imperial Segmentum Commands all across the galaxy wherever their particular talents would prove to be most useful.
The basic rationale behind seconding Mentors Squads to other Imperial Adepta is that the Mentors are able to extract the maximum amount of information regarding the fighting prowess and techniques of just about any Imperial military force and thus how to improve their operational efficiency. When these squads return to their Chapter headquarters they bring with them an invaluable record which is without parallel in the galaxy. Other Space Marine Chapters and Astra Militarum regiments to whom these squads are sent benefit from having these superior warriors join them for a campaign or battle. An extra benefit to the Mentors of this operational structure is that they are able to claim and maintain an honourable record of real combat experience despite their focus on training and research and development. As a result of this uniquely varied combat record, the Mentors have added enough citations to their Roll of Honour to make far more venerable Chapters envious.
The most experienced and skilled Mentors Astartes are Veterans who belong to a special unit somewhat similar to standard Chapters' elite 1st Companies that is known as the Elite Cadre. The Astartes of the Mentors' Elite Cadre are some of the most skilled warriors to have ever operated in the galaxy. Elite Cadre members expect to be deployed to deal with threats that lie outside the scope of a Space Marine Chapter's standard tactical doctrines, much like a Deathwatch Kill-team.
The Mentors are based in a highly-secret fortress-monastery complex that is located on an unknown world. Most of the Chapter remains within this complex at any one time, constantly training and distilling down to its essence all of the military knowledge they have gained. Select squads are chosen to leave and carry out missions for the Emperor and the competition is intense within the Chapter to be chosen for these excursions. The Mentors Chapter enjoys close links with the Adeptus Mechanicus, and is known to be unusually technologically innovative in its own right. The Chapter also acts as a test bed for new Imperial technology recently developed by the Mechanicus. Consequently, the Mentors' equipment is of a superior standard in terms of reliability and technical complexity to that of the average Space Marine Chapter, if such a thing can be said to exist.
- Nisk Ran-Thawll - The Chapter Master of the Mentors, Nisk Ran-Thawll, is one of the most formidable Space Marine commanders within the Adeptus Astartes, for he has the authority to refuse field testing of any new wargear thought to be dangerously unstable. There is no record of Ran-Thawll ever choosing to exercise his veto. He is thought to have visited Terra several times and is rumoured to have been granted an audience with the Emperor of Mankind Himself, though for what reason remains unknown.
- Manse Jah-Hlley - A Tutor of the Mentors Chapter. Jah-Hlley was instrumental in training the imperial citizens to become a militant cadre, which would bring down the renegade aristocracy that had taken over Khost Hive.
- Ran-Thawll's Gaze - Ran-Thawll's Gaze is a highly advanced Auspex with several unique functionalities. Its detection range is extended out to a kilometre. Furthermore, materials that would normally inhibit or block Auspex scans do no restrict Ran-Thawll's Gaze. The Omega Vault yielded up this unique Auspex upon the arrival of a Battle-Brother of the Mentors Chapter to Watch Fortress Erioch several centuries ago. The warrior is said to have simply approached the opening doors and taken the relic as if he had been expecting it, although this may be simply another legend surrounding his secretive Chapter and its obsessive mastery of knowledge.
The Mentors' primarily wear dark green Power Armour, which includes the power pack, helmet, torso and shoulder pad trim. The shoulder pads, arms and legs are white in colour. The red-coloured squad specialty symbol -- Tactical, Devastator, Assault and Veteran -- is located on the right shoulder pad. A black coloured Roman numeral is stenciled on the centre of the squad specialty symbol, which indicates squad number. The colour of the Aquila or Imperialis on the chest guard indicates company number in accordance with the Codex Astartes -- i.e. white (1st Company), yellow (2nd Company), red (3rd Company), green (4th Company), etc.
The Mentors' Chapter badge was originally the stylised face of an owl, but was later changed to that of a profile of a stylised red-coloured raptor's head, centred on a field of white.
- Adeptus Astartes: Successor Chapters (Limited Release Booklet)
- Codex: Space Marines (6th Edition), pg. 73
- Codex: Space Marines (5th Edition), pg. 29
- Deathwatch - Honour the Chapter (RPG), pg. 131
- White Dwarf 98 (UK), "Index Astartes-The Mentor Legion" by Bryan Ansell, Alan Merrett and Paul Cockburn, pp. 39-44
- Angels of Death: Cadre (Short Story) by Josh Reynolds