User blog comment:Master Sima Yi/Assassinews 05-08-'14 – Assassin's Creed: Rogue leaked video/@comment-3446336-20140805110247/@comment-3046679-20140805131222

Or it's like an ultimate armor, that he obtains later in the game, or when he just hunts stragglers after the main purge. After all, I really doubt an actual assassin base would be located in what looked like Northwest Passage-like location, with icebergs and shit.