Achievement: Mortal- 15G
For this achievement you'll need to earn a D rank or higher on any mission.
Normally this achievement can be earned after the first mission of the game. Some factor you'll want to take into account:
-Clear Time: The faster you finish the level, the better your Rank
-Battle Points: The longer, stronger, faster, and effective your combos and fighting strategies are, the better your Rank.
-Synchronic Rate: The more accurate and precise you QTE (Quick-Time Events) are the better your Rank.
S Ranks are the main goal for completing the game. S+S+S=S Wanted
S+A+A=A Not Wanted