All Ultimate Plan locations in Black Flag Resynced

Finding all Ultimate Plan locations in Black Flag Resynced will allow you to unlock the final tier of ship upgrades for the Jackdaw, including cannons, armor for the hull, and more besides. These plans are essential if you're going to take on the greatest naval challenges in Assassin's Creed Black Flag Resynced, but players shouldn't expect to come across the full set easily, not with a dozen different Ultimate Plans scattered around the map in different locations. You should also remember that you won't be able to upgrade your ship with these plans until you upgrades the Harbormaster in Great Inagua to level 3. Otherwise, if you're ready to make your ship the best it can be, here's where to find all the ultimate ship plans in Black Flag.

For posterity and those enjoying the original game from 2013, we've also kept our original full set of guides on how to get all the Elite ship plans in that game (which are the same thing with a different name).

To improve the Jackdaw's naval combat capabilities even more, make sure you unlock all the Black Flag Resynced Officers too!

Where to find all Ship Upgrade Ultimate Plan location in Black Flag Resynced

There's a total of 12 Ultimate Plans for the Jackdaw, spread across diving spots using the Diving Bell and Black Flag Resynced Treasure Maps - note that the Diving Bell is unlocked as part of the 'Diving For Medicines' main quest, so you need to complete that quest to reach all the plans. All of the locations are laid out below, so you know where to get them:

Oddly enough in Black Flag Resynced, elements like the Rowboat armor and the front-facing weapons are the only ship upgrades that don't need Ultimate Plans for their final upgrade tier. Still, all the others above are necessary, especially if you want to fully enhance the Jackdaw for the purposes of taking on things like Black Flag Resynced Naval Convoys and endgame threats like the Black Flag Resynced Legendary Ships.

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All Elite Ship Upgrade plans in Assassin's Creed Black Flag (2013)

There are 12 elite ship upgrades in the original Assassin's Creed 4: Black Flag, listed below.

1. Elite Heavy Shot
2. Elite Hull Armor
3. Elite Round Shot Strength
4. Elite Mortars
5. Elite Swivel Guns
6. Elite Fire Barrels
7. Elite Heavy Shot Storage
8. Elite Broadside Cannons
9. Elite Mortar Storage
10. Elite Fire Barrel Storage
11. Elite Harpoon
12. Elite Ram

Getting all of them will obviously transform the jackdaw so let's take a look below on where you can get them all.

Elite Heavy Shot location

Coordinates – 307,195, Misteriosa Island

You’ll need the diving bell to reach the map at Ambergris Key, which is on the second floor of the structure. The Heavy Shot upgrade itself is on the highest structure on Misteriosa Island. Climb to the top and look to the left of the water fountain.

Elite Hull Armor

Coordinates – 379,770, San Ignacio

Look for a wreck near some bright green seaweed. There’s a lot of sharks here but at least the wreck is fairly open meaning you don’t have to worry about getting in. If you haven’t already collected it you should see a bright animus fragment as you approach. Collect that then hang a left to find the chest and the plans.

Elite Round Shot Strength

Coordinates – 769,145, Kabah Ruins

You'll need the diving bell here and as soon as you leave you should see a wreck with some ruins to the right. Head to the front of the structure and you should find a door. The chest will be inside on the lower floor at the back. There’s a shark but if you’re quick it shouldn’t give you too much trouble.

Elite Mortars

Coordinates - 630,660, Antocha

You’ll need some nerves here as, not only is there a shark to worry about, you’ll have to swim quite deep into the wreck. Look out for the weeds to avoid the shark and then head around to the hull break on the right (if you’re approaching from the stern). Swim inside and follow the passage around until you reach the cannon deck. Look out for a skeleton chained to the wall to on the right to locate the chest.

Elite Swivel Guns

Coordinates – 488,353, Devil’s Eye Caverns

Once in the Devil’s Eye Caverns look for that ‘V’ in the rocks and follow the tunnel you find underneath around to the left. If it’s full of jellyfish you’re going the right way. Stick to the left and you should eventually come into a small cavern with two chests. The one on the left has the Elite Swivel Gun plans.

Elite Fire Barrels

Coordinate – 479,487, San Juan

The map for this is found at the Northeast corner of Santanillas. You’ll then need the diving bell to locate the Fire Barrel plans in the Smuggler’s Den. Look for some broken planks on the wall to find where you need to dig.

Elite Heavy Shot Storage

Coordinates – 901,263, Petite Cavern

This map will be found at Cayman Sound. Head to the upper right side of the islands outer edge and look for some rocks embedded near some trees. The treasure and designs themselves are located at Petite Cavern near some rocks behind the campfire. Walk down the sloped ramp and keep going past the fire to find where you have to dig.

Elite Broadside Cannons

Coordinates – 471,170, The Blue Hole

Take the diving bell down at the coordinates and look for a huge face. Swim past it and go straight down. Look for a rectangle on the sea bed which is the side of the wreck. Go over the top and around the back to find the chest on the sea floor.

Elite Mortar Storage

Coordinates – 333,650, Mantanzas

The treasure map leading to the Elite Mortar Storage can be found on a corpse along the North East edge of Tortuga beach. At Mantanzas head through the village and look for some ruins where you’ll find the treasure under this recess.

Elite Fire Barrel Storage

Coordinates – 502,44, Isla Providencia

The treasure map is found as part of the Scarlatina mission. While the actual plans are found on the Southern coast of Isla Providencia. Look out for a wrecked ship but don’t worry, this is on dry land. You’ll find the design plans by digging in among these three trees.

Elite Harpoon

Coordinates – 579,720, Andreas Island

You’ll find the map for the top harpoon upgrade just to the left of the centre of Mariguana Island. To find the design plans themselves head out to the coordinates and look for this little circular island just off the coast with three trees. Dig just in front of the two trees growing together.

Elite Ram

Coordinates – 181,296, La Concepcion Shipwreck

More sharks, so you’ll need to use the weeds to stay un-eaten once you’ve used the diving bell to get down there. At least this one is easy to recover. Look for the main mast and you should find the chest in a small alcove behind it.

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