This is the third and final Officer Quest you can complete with Deadman. You can start it after completing the previous one, "All Love Must End" - to do so, return to Great Inagua and interact with the mortar located next to the Harbour Master.
Edward and Deadman hunt British ships and test out the new mortars.

1. Sink the British ships
The latest creation of Deadman - the Deadman's Cohort Mortar - will be installed on your ship.

Head to the location where you will battle the British ships. A total of three waves of enemy vessels await you - with the final wave naturally being the largest. At this point in the game, you surely have naval combat fully mastered, so I will skip the fighting tips - just do not forget that from now on, you have a powerful new toy at your disposal.
The first wave of enemy ships consists of two Brigs and four Cutters.

The second wave consists of just two Brigs - though a pirate hunter ship will certainly make an appearance as well.

The final wave will be the largest and most powerful - one Frigate, two Brigs, and four Schooners.

The new weapon is truly powerful - as long as you master how to use it accurately.

Once you sink all the British ships, a cutscene will trigger. Edward will thank Tobias for everything he has done and offer to let him change his nickname if he wants to. However, Tobias decides to keep the one he has. This concludes both the quest and the entire chain.
