Skull and Bones is littered with different outposts to discover, and if you want specific blueprints such as the Sentinel ship, you need to find Kaa Mangrove. This guild will give you the exact location of this outpost along with the main vendor.
Kaa Mangrove Location in Skull and Bones
Kaa Mangrove can be found in the southern half of the Sultani Island zone. If you haven’t found this zone yet, you can reach it by heading west of Sainte-Anne and moving all the way to the Coast of Africa. Sultani Island is one of the first zones you can reach when you enter the coast and it also marks the start of slightly tougher enemy ships.
The Mangrove is another makeshift rogue camp and that means it has some special pirate vendors that you can take advantage of. One of those vendors is the Corrupt Campaign Manager and he sells blueprints for ships such as the Sentinel, which is a cutter class. It starts at level three, so you can use it as a boost to the next set of ships in Skull and Bones.
To find the Corrupt Campaign Manager, simply fast travel or dock at the Kaa Mangrove outpost. Once you’re on land, move directly to the right side of the beach where you will find a pirate in a bright blue jacket. This is the man you want to trade with, but it won’t be cheap. Buying the Sentinel blueprint alone was nearly 5,000 silver.
Of course, he has all kinds of materials, repair kits, and ammunition for you to stock up on. The only limit to what you can buy for quantities is based on how much Silver your crew has obtained. So collect what you can before you go looking for the officer. Just don’t expect materials like Iroko Planks when you return.
Another important outpost is the Royal Burial Ground, which is needed for another buried treasure quest.