>>5629448>Start tricking/voluntelling Iron Warriors to speak with them.Remember what Perturabo and his legion wanted most is recognition for their deeds, something they lacked and a major contributor for their betrayal.
Remembrancers for us are redundant. The Imperium needs them because the Imperium are bad record keepers. But every 2nd Legionaire, Skitarii, Lucian Drone and servitor has a camera for eyes and microphones for ears and we are very meticulous data keepers as well as our various projects on Federation propaganda. Hell even our Knights should have House Minstrels to record their deeds, cheeky little glory hogs.
Meanwhile Perturabo loathes techpriests and their ilk, and keeps them to a minimum. So they have fewer Mechanicum heralds than we would.
Let the Iron Warriors have their time in the sun. Glory to the Iron Primarch! Glory to the Sons of Olympia!
Also the Olympians in canon rebelled because Perturabo refused to send them victory propaganda. They were giving their sons away, but received no word of their heroic deeds, for all they knew they were dead so this could be the thing to stop that from happening.