Thought it was strange that it was never mentioned, but I suppose in all the excitement of the release of the Master Chief Collection and Nightfall, it was probably overlooked. Shirley’s Halo: Broken Circle was released on November 4th and seems to have been largely overlooked. It was a strange and unique look into the backstory of the Covenant’s history and I think it warrants the attention of any fan of the series. I don't know if I have the time with my hunt for MCC Achievements, but if I find the opportunity I'll probably end up writing a review for BC as well.