>>5637409>Give them some records of the Iron Warrior’s successes>Other: Put a Pause on noble conscription. We will re-assess the methods of conscription later>They will be expected to continue to give up material support and must accept magos biologis who will rebuild their numbers since that is their primary complaintWe can't let them get away with everything or other planets might get the bright idea, but we can give them what they want in exchange for concession.
No son raised from Olympia now will fight in the Heresy, it's too late. It takes decades to raise a fresh marine and the shroud has fallen upon our vision now. For all we know, Terra itself could be under siege. Better to just ensure their loyalty now, and then come back with a better deal for all later.
The Iron Warriors have been saved from the latest route of catastrophe with the Hrud.
This is basically going to play like Vostroya anyway, where they refused requests for reinforcements and stated that they would be more useful pumping out war supplies and equipment (which was not untrue). However Guilliman himself came back after the Heresy to reprimand them. We should do the same here.
Maybe down the line something like "They can keep their firstborn son, but everyone they have afterward is ours and they are required to make more" and we'll have biologis in place to ensure they do.