No, because the War within the Webway happened during the Heresy and was done with four years before the Emps fell to Horus.<br/><br/>Lore says that it was when Emps fell at the end of the Heresy that the Custodes, in mourning, took off their armour and wore cloaks of black for their part in failing the Master of Mankind.<br/><br/>In the War within the Webway they basically had all the armour and weaponry Legio Custodes would have had back then. The normal Custodes armour back then was the equivalent of Termintor armour. In M41 the Custodes are protected by a ward blessed upon them by Big-E along with their armour and this warding is the equivalent of an Iron Halo field.