User blog comment:Master Sima Yi/Assassinews 10-07-'13 — Assassin's Creed IV: Black Flag pirate gameplay naval exploration/@comment-4999424-20130711222025/@comment-1888015-20130712215759

Depends how loosely the Templars and Assassins are established in the West Indies. Given that Templars want control and pirates are free men doing as they please, it may be that Templars are the ones who hunt pirates or those who want to impose control, but a benevolent one.

Assassins can be encouraging anti-slavery and supporting the pirates who fight less for greed and more for a personal motivation.

Edward does get betrayed and killed in the end though, we know this to be true from Forsaken.