User blog comment:Master Sima Yi/Assassinews 05-08-'14 – Assassin's Creed: Rogue announced/@comment-5174994-20140822194202/@comment-5174994-20140823123319

I would assume that this is where the mission rating system has come into play. It's not like Unity needed to use the ratings because the game doesn't use any of the old mission structure, so they probably used this as a way to see what we like & add more missions like those. I'm going to assume that tailing is gone or changed.