The Imperial world of Nim-Kor is engaged in a two-way civil war between rival heirs to the Governor’s mantle (such is the stupidity of man). Chaos-worshipping savages inhabit the southern wastelands, but are rarely much of a problem to the 'civilized' Imperials.

Castor cuts a deal with the savages: He'll provided them with guns and provide a 'distraction' they can use to invade the north. He then goes north himself, tricks his way into the inner circle one of the world-be governors - and then proceeds to kill both him and his rival. Afterwards the fleet is instructed to eliminate key concentrations of military power (whose locations have been provided by the helpful would-be governor). A hundred thousand or so Khornate berserkers are loosed upon main population centers; to murder, pillage, and recruit.

Min-Kors orbital assets are used to give the fleet much-needed maintenance and refits. You also come away with Emona - a savage sorceress that will rise to become an important part of your court.