The specialized variant of the standard-issue I-44 armor made by the Hephaestus Forges, used by the 117th Salamander Regiment. Coated in a fine layer of inflammable mixed with a secret compound that prevents the damage of the internal electronic components. Each I-44Σ includes the Regimental insignia made with pure gold from Pico Victoria, similarly to the Brimstone weapons. The armors are blessed using anointed oils and sacred incense by a Chaplain of the Ministry of Truth, to ensure the purity of the Helldiver who will be deployed to fight the enemies of Mankind. The users are allowed to display their Battalion insignia in the other pauldron.