Optional Objectives:
- Plunder a Hunter ship
- Plunder 30 Sugar
You will need to take on 2 Brig ships to get the required Metal to complete this mission, but you will also need to look for Sugar. Once you have the 70 Metal, the Jackdaw's notoriety will become wanted and Hunter ships will now pursue you. These ships are recognizable due to their X mark on the mini-map and their red tint to indicate an active enemy ship.
Once you have all the optional objectives complete head back to Salt Key Bank and bribe the local officer for 200 R. Return to the Jackdaw and head to the Captain's Quarters and interact with the ship model to purchase Broadside Cannons to complete the memory.
