Update: The bug has been fixed. https://twitter.com/konamieu/status/651413159035707392 Original story: Some players are encountering a bug in MGSV: The Phantom Pain that prevents them from obtaining an S-Rank in a certain mission (and thus prevents them from unlocking the achievements / trophies that are tied to getting an S-Rank in all the missions and completing the game). The problem occurs when people play the Mission