Surprised this hasn't been talked about yet, as it was yesterday's Advent story.
Long ago, the primarch Lorgar was humbled by his brother Guilliman for his belief in the Emperor's divinity. Led down a dark road by this shaming, Lorgar embraced Chaos. Now, he and his Word Bearers rampage across Guilliman's realm, burning his 500 worlds in the name of their new gods. But on such world, Lorgar finds a mystery that brings his past into the present and shines a new light on his endeavours. It seems that Lorgar's legacy may be greater than even he could have ever imagined…
Written by David Annandale. Running time 24 minutes. Performed by John Banks, Cliff Chapman, Emma Gregory & Stephen Perring.
This one was pretty fun and addresses an elephant in the room that the Heresy has so far avoided. It's a good little story and character piece for Lorgar, dealing with what has to be Annandale's favorite subject matter / theme in fiction.