Assassin’s Creed 4 Black Flag Resynced Mortar Storage Ultimate Plan Location

Mortar Storage Ultimate Plan in Assassin’s Creed IV Black Flag Resynced is needed to buy the final Mortar Storage ship upgrade at the harbourmaster.

Mortar Storage Ultimate Upgrade Plan Location

Mortar Storage Ultimate Plan is a reward for solving Treasure Map from Tortuga (Matanzas).

Treasure Map Location: Tortuga (851, 352) – at the eastern shoreline of Tortuga, from a skeleton at the beach.

Treasure Map Solution: Matanzas (312, 617) – in the south-east corner of Matanzas, to the left of the Mayan Stelae behind the waterfall.

For all other Plans refer to All Ultimate Upgrade Plan Locations and for everything else also check the Collectible Guide.