The Macharius Heavy Tank is the work of Magos Nalax of Lucius Forge World, who collated scraps of data found deep within the logic-stacks of the Manufactorums of his home world.

Before these designs were fully blessed by the Mechanicum, Lucius was granted the right to produce Baneblades but struggled to maintain supply in the face of the Imperiums' demand for these war machines. When Krieg returned to the Imperial fold, Lucius was required to supply much of the equipment required for the new Death Korps regiments. The machine-lords of Lucius turned to the Macharius and its variants, including the Vanquisher turret variant.