Many would swear blind that the core regiments of the Death Korps of Krieg do not traditionally deploy Ogryns. It is speculated that the reasons for this are many, but most notably, Ogryns aren’t really designed for trench warfare, the Krieg speciality. On top of that, it is posited that the vast quantities of material required to make enough greatcoats for an Ogryn squad would be ruinously expensive. All that being said, no one has ever had the fortitude to mention this in front of Grum.