Wrath of Mars

A downloaded expansion for Only War, focusing on the adepts of mars, the Adeptus Mechanicus, and the Skitarii Legions. 

With new Origins, Commanding Magos, Maniples, Doctrines, Weapons, Armour, Talents, Orders, Vehicles, and even adjustments to the standard guardsmen specialities and support choices. Should be literally everything you’d need to run an Only War as if it were intended for the Adeptus Mechanicus.