Vampire building that increase local corruption also causes Vampiric Osmosis that corrupts Ally lands.Vampire units suffer attrition in non-vampiric lands even if it belongs to Coop Ally, Coop Ally also suffers attrition in Vampiric lands.Ever since I started playing I have always avoid playing Vampire/Chaos factions because I'll end up causing corruption to my Coop ally resulting in all manners of problem - public order, attrition etc.Ī few significant things that makes the game hard: