What about if they are led by a crazed warrior priest, and are the remnants of a crusade that the Sigmarite priest led north to 'Retake Praag' for the Empire. After fighting through stiff opposition, the crusade eventually had to turn to scavenging when the chaos forces destroyed their camp train. Lost in the north, surrounded by foes and using the dread and corruptive weaponry of the blighted chaos warriors, the Sigmarite priest has ordered his 'crusade' around to resupply and rest back in safety, little suspecting the consequences of his army deciding to take these trophies...