Carcharodons - Chapter Organisation: As previously mentioned, what few Imperial records exist about the Carcharodons suggest they are entirely fleet-based, which in turn would suggest they have fundamental differences from most, more conventional, Space Marine Chapters.Their long isolation may also have an effect on the Chapter's wargear. The few starships observed to be serving the Carcharodons were wildly different in design and even the era of their construction, indicating the Chapter likely makes use of whatever vessels it can find, and performs extensive modifications and repairs in order to keep them sailing as long as possible.This carries over into the individual battle-brothers as well. Those Carcharodons who have been seen often sport arms of ancient providence.They are far more likely to carry weapons such as the ancient Phobos R/017 Pattern Bolter or the Mark V Heresy Pattern Power Armour from ten thousand standard years in the Imperium's past, alongside other weapons and gear that span the entirety of that ten-millennium history.Again, it is likely this is a by-product of the Chapter's enforced self-sufficiency.These attitudes seem to apply to the Chapter's overall organisation. Although anecdotal evidence indicates the Carcharodons roughly conform to the tactical and squad doctrines of the Codex Astartes, this does not carry over to its command structure and company arrangements.Instead, the Carcharodons seem to split their Chapter into a number of Battle Companies designed to operate independently. Each has an augmented auxiliary force of Scout Marines for reconnaissance and evaluation of the enemy, and a dedicated spearhead of Terminator Veterans who serve as the company Captain's bodyguard. It seems likely the Carcharodons eschew Reserve Companies entirely.Those accounts which purport to be of the Carcharodons indicate that they often seem to have abandoned the Codex Astartes-prescribed symbols and insignia that signify rank and assignment in a Battle Company.In their place, the battle-brothers use a wide range of personal and totemic markings, corresponding with their primitivist tendencies. This is naught but conjecture, however, as again, the Carcharodons are quite unwilling to discuss the intricacies of their Chapter's organisation.The Carcharodons have been observed to make use of Chaplains and Librarians, with little deviation from their roles in other Chapters. However, Apothecaries and Techmarines seldom appear outside the Carcharodons' nomad fleet. It's very likely that the Carcharodons recognise the vital role these Space Marines play in preserving and maintaining their Chapter's very existence, and keep them on hand whenever possible.These last two cadres may have been held in reserve in the Chapter's fleet, a not uncommon practice for fleet-based Chapters who spend large periods in isolation. This structure puts the effective strength of each company at around 100 to 120 Initiates and 20-30 Neophyte Scouts, although the exact size and disposition of the Carcharodons Chapter as a whole remains unknown.Only a few intelligible accounts of the Carcharodons exist that tell of the Chapter's very disciplined order of deployment and battle, despite the evidence from casual observers that they are a barbarous and savage Chapter in nature.Their tactical deployments and use of shock-assault tactics is highly reminiscent of the Black Templars. Although these Chapters are diametrically opposed in character and culture, they both tend to display an overriding desire to close with the enemy and shatter their foes in bloody personal combat.