Full Gameplay Walkthrough...

Complete the indicated task to unlock the achievement.

Achievement	How to unlock
A Rogue Reborn	Complete Act I on any tier.
All Decked Out	Buy all Crew upgrades.
An Eye for an Eye!	Defeat the Blackbone's final form on difficulty level Ultimate V or higher.
Betrayed	Complete the Prologue on any tier.
Dead shot	Reach the maximum Musketeer level.
He's Flippin' Brilliant!	Reach the maximum Grappler level.
Heart of Glass	Complete Act II on any tier.
Knives Out!	Reach the maximum Backstabber level.
Leave It To Cleaver!	Reach the maximum Cleaver level.
Masterchef	Reach the maximum Cook level.
Plunder and Ruin!	Complete Act III on any tier.
Priority Shipping	Buy all Ship upgrades.
Quartermaster	Buy all Equipment upgrades.
Rise of the Sea Shepherd	Buy all Sea Monsters upgrades.
Rising Tide	Defeat Blackbone's final form on difficulty level Heroic III or higher.
Terror of the Seas!	Defeat the Blackbone's final form on difficulty level Ultimate IX.
That's the Spear-it!	Reach the maximum Spearmaiden level.
The Legendary Captain Cutter	Reach maximum Cutter level.