The Leman Russ battle tank was first developed some time during the Great Crusade in the late 30th Millennium. The Leman Russ battle tank proved to be a reliable and proven armoured vehicle named after the Primarch of the Legiones Astartes Space Wolves in honour of his savage ferocity in war. Amongst the force of the nascent Imperium that utilised the resilient and ubiquitous battle tank, was the elite forces of the Solar Auxilia. Numerous sub-patterns mounted a wide array of weapons in service of the elite armoured formations of the Solar Auxilia, and were often enhanced to the "Solar" pattern, fitted with supplementary survival and exploration systems. Leman Russ tanks in Auxilia strike squadrons were fitted with extended fuel reserves and their engines enhanced with forced induction cha