Notable Military Force
Gatebreakers
The Gatebreakers: a tenth Founding Chapter in some distress. Nominally Lords of Andocrine – a system on the very edge of Imperial territory at the Galactic rim – their homeworld is used by the Chapter only for snatch-and-grab recruitment; along with the other inhabited planets in the system.
The Chapter itself occupies the vast asteroid fields of the system, with the Astartes nomadically moving between the largest of the ammonia-wreathed dwarf planets. The Chapter specialises in void warfare and ship-to-ship assault.
Or at least; that is its boast. In truth, the Gatebreakers are suffering from numerous and growing gene-rune problems. Their melanchromic organ and neuroglottis are non-functional, and more than ninety per cent suffer catastrophic collapse of the sus-an Membranes prior to leaving the Scout Company-analogues. Many suffer irregularities of the oolitic kidney or paralysis of the multi-lung; while a minority also suffer failures of the occulobe or Lyman's ear, necessitating bionic replacement. While it is officially no shame to bear geneseed with failed or misgenic organs (the Imperial Fists being a good example) the sheer level of failure to the Gatebreakers' seed is a point of deep shame to the Chapter, and they go to huge lengths to conceal the extent of their sickness.
The Chapter's culture – insular to the point of isolationism – has deemed this inner corruption must be hidden; to the point of short-stocking or withholding their tithe completely. Thus far, their distant galactic position and mobile nature has meant few Imperial parties are particularly interested.
Recruiting heavily in order to make up for the sheer level of catastrophic failure, the Gatebreakers harvest the three worlds of Andocrine regularly, launch slaving raids on any non-Imperial human worlds they come across, and demand payment in the form of a planet's youth when they come to its aid. As a result both of this and of the weak influence of the geneseed, the Gatebreaker's phenotype is hugely diverse.
They remain adherent to their ancient oaths. On the occasions when the Chapter must send a delegate, they nominate a Claviger – or Macebearer – an in-Chapter term for Astartes granted leave to liaise with other Imperial authorities. Clavigers are almost invariably members (or Gentles) of the Apothecarion, and tend to be well-respected, as the Chapter's pragmatic and adaptable apothecaries are highly skilled and intimately knowledgeable about biochemistry and the Astartes form. They are few and far between, but most Deathwatch who have served alongside a Gatebreaker tend to admire their medical knowledge and skill; if not their social graces.
Clavigers serve with honour, with faith... and with the understanding that they must bring back information, evidence or – better still – samples of other Astartes Chapters' gene-organs.
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A Gatebreakers Host – that is, a Company analogue) has established a temporary Watch Fortress known as the Six-WInged Redoubt on Starfall in the Djosa system (Mercia Subsector). Here, the Gatebreakers hunt – and recruit – the best the feral world has to offer.