User blog comment:Master Sima Yi/Assassinews 31-03-'15 — Assassin's Creed Chronicles announcement trailer/@comment-5174994-20150421152414/@comment-25501691-20150422011418

Forgot to mention that there's an amazing new grading system, very similar to Splinter Cell's. It grades you on how stealthy you were during a certain point of the game. It also gives you points, which you can use to unlock new abilities.