User blog comment:Master Sima Yi/Assassinews 03-03-'13 — Assassin's Creed IV: Black Flag trailer and screenshots/@comment-176.205.13.110-20130305180530/@comment-1379990-20130307212142

Actually it's the opposite. Edward is rather selfish, so he's a pirate first and then an Assassin, though I'm sure he'll come around as the story evolves.