Upon Calderis the Black Legion has led the Blood Raven's Scout forces into a terrible ambush. It's a bloody and quick affair as Cyrus rushes to aid his former student, and save the very future of the Chapter. Sometimes Jonah teamkills.
Audience participation in the thread at Something Awful's Let's Play Forum: http://forums.somethingawful.com/showthread.php?threadid=3463975