Maximize the Jackdaw in Assassin’s Creed Black Flag Resynced
To fully enhance your ship, the Jackdaw, in Assassin’s Creed Black Flag Resynced, you need all 12 ultimate upgrade plans. These plans are essential for unlocking the strongest upgrades for your vessel. In this article, we’ll outline where to find each plan and what prerequisites you need to consider before diving into your maritime upgrades.
Importance of Upgrade Plans
The ultimate upgrade plans are critical to elevating your Jackdaw to its maximum potential. There are 12 upgrade plans in total, and they can be divided into two categories: plans hidden in underwater wrecks and those obtained through treasure maps.
Accessing Underwater Areas
The underwater exploration areas become accessible only in Sequence 6 after completing the main quest “Diving for Medicine.” Prior to this, you won’t be able to explore the wrecks to retrieve the ultimate plans. This means timing and sequence progression are essential to maximize your ship’s capabilities.
How to Use the Upgrade Plans
Once you find an upgrade plan, you can use it in the harbor master’s “Ship Upgrade” menu. Along with the plan, you’ll need a sufficient amount of money and materials. But fret not; you can utilize Kenway’s Fleet, which becomes available in Sequence 4. Sending five Schooners and five Brigs on missions can help you earn Reales and gather materials while you play.
Additionally, capturing forts as early as possible will unlock new sections on your fleet map, allowing you to expand your resources.
Locations of All 12 Ultimate Upgrade Plans
Here’s a comprehensive list of all 12 upgrade plans along with their locations:
Ultimate Plan for Round Shot Strength: Found in an underwater chest at the wreck of the Kabah ruins (Coordinates: 738,120).
Ultimate Plan for Heavy Shot Power: Reward from the treasure map at Ambergris Key (Coordinates: 28,160). The treasure is later found in Misteriosa (Coordinates: 271,178).
Ultimate Plan for Fire Barrels Strength: Reward from the treasure map at Santanillas (Coordinates: 191,218). The treasure is in San Juan (Coordinates: 455,462).
Ultimate Plan for Mortars: Located in an underwater chest at the wreck of Atocha (Coordinates: 600,636).
Ultimate Plan for Broadside Cannons: Found in an underwater chest at the wreck of the Devil’s Eye Cave (Coordinates: 456,332).
Ultimate Plan for Ram: Located in an underwater chest at the wreck of La Concepción (Coordinates: 150,271).
Ultimate Plan for Hull Armor: Found in an underwater chest at the wreck of San Ignacio (Coordinates: 348,745).
Ultimate Plan for Heavy Shot Storage: Reward from the treasure map at Cayman Sound (Coordinates: 298,311). The treasure is located in Petite Caverne (Coordinates: 863,235).
Ultimate Plan for Fire Barrel Storage: Reward from the treasure map at Petite Caverne (Coordinates: 862,237). The treasure can be found in Tulum (Coordinates: 40,372).
Ultimate Plan for Mortar Storage: Reward from the treasure map at Tortuga (Coordinates: 851,352). The treasure is in Matanzas (Coordinates: 312,617).
Ultimate Plan for Harpoon Strength: Reward from the treasure map at Mariguana Island (Coordinates: 847,514). The treasure can be found in Andreas Island (Coordinates: 544,693).
Ultimate Plan for Fire Barrels Strength: Reward from the treasure map of Santanillas (Coordinates: 191,218). The treasure will be in San Juan (Coordinates: 455,462).
Conclusion
By following this guide, you can systematically locate all ultimate upgrade plans and maximize your Jackdaw’s potential. Upgrading your ship not only enhances your gameplay experience but also makes your venture through the high seas far more enjoyable! Happy sailing!

