Astra Militarum Gets a Serious Armoured Upgrade in Armageddon: The Return of Yarrick If your ideal Astra Militarum army involves roaring engines, rolling steel, and enough tracked armour to shake the table, the latest Armageddon  update is very much for you. Games Workshop has revealed two new Detachments  for the Astra Militarum in Armageddon: The Return of Yarrick , and both of them lean hard into one of the faction’s biggest strengths: overwhelming force delivered by machi