The story mode of the Ultimate Apocalypse mod is currently undergoing a large revamp. The following is the current draft of the introduction to Mission 1.
slowly recovered from the 13th Black Crusade, a tremendous surge of
power was unleashed in the Warp, screaming into the minds of psykers throughout
the galaxy. It heralded a simple message: The Champion of Chaos will rise.
Shortly thereafter, a great fleet of warships poured forth from the Eye
of Terror, bearing the Eight-pointed star. As had come to pass many times, a
war host of the heretics fell upon the fortress planet of Cadia, like water
upon rock. Unlike previous such instances, no word was heard of Abaddon the
Despoiler, Warmaster of Chaos. Also unlike previous times, the soldiers of the
Imperial Guard were unprepared for the armies Chaos brought to bear.
Cadia fell within a day.
There, the Chaotic fleet splintered. Denizens of the warp went their
separate ways to satiate their thirst for carnage throughout the galaxy, and to
appease whatever force they called Master. But one such war host dwarfed all
others in size and ferocity of attack, bringing ruin upon planet after planet
with unsurpassed fury. It’s trajectory plotted a straight line towards Holy
Terra.
Oh hey, nice. :)