Caractacus Barlos

Caractacus Barlos, eventually known by title as the Oxidizer and The Lord of Martemper, was a of the Legion who followed his Primarch in turning against the . In his first few centuries active before the , Caractacus displayed not only exceptional aptitude for logistical work, but also the humility to curb his creative impulses and perform as the IVth Legion's exacting operational structure demanded.
His deference to the Iron Warriors' doctrine was rewarded with transfer to an Support Squad as a replacement--a common assignment given the Legion's high attrition rate. Among the senior Astartes in this unit while fighting against horrors from beyond Imperial expansion such as the Hrud, Caractacus was truly inculcated into the Legion's culture of deeply-held resentment and paranoia. When this dark period in the Legion's history ended with the abrupt rebellion and subsequent decimation of Olympia, the adopted homeworld Caractacus had so come to love, his course would forever be entwined with that of the Iron Warriors.
Promoted to a leadership position following the reveal of Perturabo's true loyalties following the Battle of Istvaan V, Caractacus was chosen to aid the Captain of the 200th Grand Company in organizing and defending supply lines for both the IVth Legion and those of other Legions sworn to Warmaster . While this denied him many chances to serve in combat, it placed Caractacus excellently to rise when his Captain was promoted to replace their deceased Warsmith, and to survive the Great Scouring and Iron Warriors' retreat into the .
As the IVth Legion adapted to their new home realm, their Primarch declared territory should be claimed and fortified to supply the Legion. The 200th Grand Company came to play a crucial role in these territorial campaigns, thanks in part to Caractacus' understanding of which worlds would be logistically significant. This came to include the of Martemper, as one of the Iron Warriors' first experiments with using profane rituals dedicated to the to cause a world to fall into the Warp as a .
Serving as aide to the Warsmith chosen by Perturabo to garrison Martemper, Caractacus would spend centuries coercing enslaved Pneumachia and subjugated Hereteks to carry out experiments in the rituals used to birth Infernal Engines, Helbrutes, Defilers, and eventually greater Daemon Engines. The result of these experiments would be the production of Daemon Engines for the Iron Warriors and other Traitor Legions on an industrial scale. When this mass production became a dire enough threat to loyal Imperial forces to make Martemper a priority, Caractacus used the assault by loyalist Marine Chapters to demonstrate his mastery of defense-in-depth, and put his Warsmith conveniently in harm's way. With his superior and the attacking Loyalists wiped out, Caractacus assumed responsibility as the new Warsmith of Martemper.
==Biography==
===Recruitment and Training===
===Assault on Glittering Fastness===
===Sat'rada Deeps Campaign===
===Horus Heresy===
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====The Great Scouring====
===Garrison of Martemper===
===Assault on the Pits of Martemper===
===Lordship of Martemper===
====Taking of Space Hulk Einhard-Justice====
In which Caractacus lends aid to loyalists against a Sorcerer of the Thousand Sons in exchange for acquiring the helmet of a Rubric Marine. Returning them to Martemper, Caractacus pays homage to the helmet, hoping if it lies forever in his treasury, it will never be reunited with its body and the soul of his old friend may finally know rest.
==Personality & Traits==
==Wargear==
*Mark-II Crusade Armor
==Connections==
===Allies===
===Foes===
==Trivia==
*The name Caractacus comes from the protagonist of the 1968 film Chitty Chitty Bang Bang.