Vanitor - Geography: The world of Vanitor possessed several areas of ultimate strategic import for any force seeking to maintain or seize control over the planet during the Plague Wars. These included:The Konorian Astropathic Relay - This vast basilica, surrounded by a perimeter wall dotted with Icarus Lascannons and Sentry Guns, houses Vanitor's astropathic choir. During the Plague Wars, they remained within, bolted to restraining harnesses and pierced by ritual blades, screaming their corrupted insanity into the void. Their trauma, magnified by the profane ceremonies of the Chaos Sorcerers that guarded them, threatened to unleash a colossal Warp rift across the windswept plains of Vanitor. Already the membrane between realms had been torn apart, and legions of daemons had clawed their way into realspace. Those Imperial forces that survived the aetheric tempest that whipped about the mountaintop, or who managed to push their way through the heavily guarded Tremantaen Peaks, were forced to storm this formidable redoubt and eliminate the corrupted Astropaths. The cost in lives and equipment proved enormous, and when the Imperial forces failed to penetrate the Chaos defences, Vanitor became a beacon to the nightmarish denizens of the Warp, as daemons ran rampant across the entire Konor System.Tremantaen Peaks - The mountain passes leading to the Konorian Relay were dotted with Chaos defences, garrisoned by massed legions of Traitor infantry and artillery. Empyric dissonance rendered both teleportation and airborne insertion to the relay incredibly dangerous, and so the hot-zone of the Tremantaen Peaks -- the most viable land route to the facility -- saw ferocious fighting. As the Grey Knights and their allies advanced, they braved twisting, treacherous paths ravaged by bombardments, mines and Bolter fire. Worse still, daemons began to tear their way through the veil between dimensions, and heavy blizzards and empyric storms ravaged both the defenders and attackers.The Festering Gush - The largest localised Warp Storm unleashed upon Vanitor during the Plague Wars was named the Festering Gush by the Heretics responsible for unleashing it. Above a plain of rolling grassland, a ragged wound in the sky vomited the raw essence of Chaos into reality, and where this rancid deluge fell, the flowers of Nurgle's garden bloomed with sickening fecundity. This forest of corruption continued to grow with every passing moment, and, if left unchecked, even the elimination of Vanitor's astropathic choir would not be enough to suture the breach in reality. The Grey Knights initiated a fierce assault upon the Festering Gush, led by Grand Master Aldrik Voldus and a number of their most powerful psyker Astartes. They held back the tide, buying time for their allied armies to destroy the Konorian Relay. Arrayed against them were legions of daemons and Chaos worshippers, protected by a fortress of bursting slime-blossoms, parasitic leech-seeds and a thousand other Empyric nightmares given physical form by the breach. Unfortunately, the Imperial forces proved unable to secure the relay, and Voldus' forces were forced to retreat from Vanitor and accept a rare defeat against the servants of the Dark Gods.