The planet of Faranorn doesn’t have much of a history. A Frontier world, it was founded and colonized only a few decades ago by the Imperium and serves as nothing more than an outpost in the Caldera System that faces the approaching Tyranid fleet. Low on natural resources, Faranorn is nonetheless of great interest to the Imperium due to its high level of warp activity. Seven years ago, the Ordo Malleus organized an expedition into the frozen wastelands of Faranorn to seek out the source of the warp activity, but communication quickly ceased between them and command, and they were never seen again. Since then, a relatively large force of Imperial guardsmen, along with a detachment of heavy support and reconnaissance vehicles has been stationed on the planet, guarding it from a possible future threat of demonic incursion.
But what makes this so interesting, is that in the same system, two planets down orbits another planet, Kordin V, which was a forge world up until its destruction by order of Inquisitor Polonus during a routine inspection. Inquisitor Polonus deemed the world to be rife with heresy and beyond saving. The Imperial Guard company assigned to the planet was ordered to evacuate and the planet to be exterminated. With no small amount of regret the Imperial Fleet bombed the planet to extinction, and was left stranded with no planet to call home. Inquisitor Polonus soon departed the system and returned to Terra, where he was quickly executed for issuing such a grave order without any solid proof. The 301st Kordin Marshalls were spared for their hand in destroying the planet, and were assigned to Faranorn to bolster the already substantial force there.
At first tensions were high. The 12th Faranorn Wardens resented the arrival of troops that had destroyed their own home planet. Eventually though the tensions faded away under a sense of camaraderie, as both regiments knew they were just as forsaken as the other.
Scarcely a year after the arrival of the Marshalls, Faranorn was invaded by a large chaos force. These forces, followers of Khorne, rained down from the sky like blood red raindrops, and it took the combined forces of the Wardens and the Marshalls one long year to finally eradicate every last trace of the chaos infestation. Since then, they have been beset upon by an Ork Waagh, a Tau expeditionary force, and even a rogue Space Marine chapter, but each time they have pushed back the invaders, though with no small loss to their own side.
Now, with the Tyranid splinter fleet pulsing and growing in size, the Wardens have painted their uniforms with a dark red trim, signifying the bond between them and the Marshalls, who in turn have painted their own uniforms with an ice-blue trim. Together they form a grizzled and veteran force, experienced in battles against many xenos and traitor scum, and they face the impending Tyranid invasion with countless lasrifles, glistening tank turrets and a grim determination to see it through to the end.