User blog comment:Master Sima Yi/Assassinews 05-08-'14 – Assassin's Creed: Rogue announced/@comment-24760042-20140826165831/@comment-1153722-20140826171416

No I haven't. This was established in AC4, and seeing how he took up Achilles' mantle after his death, he could not not have been a Master Assassin.