Your ship in Assassin's Creed Black Flag Resynced can be fitted with a wide range of upgrades for nearly all of its components. While most of them only require money, materials and upgrading the harbormaster's office, the so-called Ultimate upgrades require you to find specific plans.
Not every top-tier upgrade requires plans or is classed as an Elite upgrade, but the ship's key components, such as its hull and cannons, generally require the plans listed in this section.
Ultimate upgrades can be purchased from any harbormaster once you've bought all the preceding upgrades. Bear in mind that not every part of the ship has an Elite upgrade, and every Elite upgrade that is available requires the appropriate plans and materials.
