Complete the indicated task to unlock the corresponding cheat under the "Cheats" option at the "Abstergo Challenges" menu. Note: Enabling a cheat will prevent the game from being saved.
Armed to the Teeth: Complete 90 Abstergo Challenges.
Arrr Matey!: Complete 20 Abstergo Challenges.
Celestial Navigation: Complete 10 Abstergo Challenges.
Dead Men Tell No Tales: Complete 70 Abstergo Challenges.
Deceased Crew: Complete all 100 Abstergo Challenges.
Loaded to the Gunwhale: Complete 50 Abstergo Challenges.
No Quarter: Complete 30 Abstergo Challenges.
Poseidon's Will: Complete 60 Abstergo Challenges.
Scourge of the Seven Seas: Complete 40 Abstergo Challenges.
Shiver Me Timbers: Complete 80 Abstergo Challenges.
Complete the indicated task to unlock the corresponding costume.
Altair's Robes: Previously play any Assassin's Creed series game on your Uplay profile.
Brown Cloak: Available for purchase at a General Store for 1,500 R.
Connor Kenway's Outfit: Previously play three Assassin's Creed series games on your Uplay profile.
Crimson Cloak Outfit: Available for purchase at a General Store for 3,000 R.
Edward the Legend Outfit: Unlocked in Uplay for 20 points.
Explorer Outfit: Complete Community Challenge #6 (done online).
Ezio Auditore's Robes: Previously play two Assassin's Creed series games on your Uplay profile.
Feline Pelt Outfit: Craft one jaguar pelt and one ocelot pelt.
Governor's Outfit: Find and share a social chest (done online)
Hunter Outfit: Craft one red howler monkey skin and one white jaguar pelt (reduces animal aggression).
Mayan Outfit: Complete all Mayan Stone side-quests (deflects bullets).
Merchant Outfit: Available for purchase at a General Store for 10,000 R.
Officer's Outfit: Complete the "Great Reputation 1" trading mission to Gibraltar with Kenway's Fleet (a Mediterranean Sea mission).
Pirate Captain Outfit: Available for purchase at a General Store for 8,000 R.
Pirate Cloak: Available for purchase at a General Store for 6,000 R.
Politician's Outfit: Available for purchase at a General Store for 12,000 R.
Privateer Outfit: Available for purchase at a General Store for 5,000 R.
Shark Hunter Outfit: Craft one bull shark skin and one hammerhead shark bone.
Stealth Outfit: Complete 50% of Assassin Contract side-quests (decreases visibility and improves stealth).
Templar Armor: Complete all Templar Hunt side-quests (gives 25% damage reduction).
Whaler Outfit: Craft with three white whale skins.
Charge Ram attack
Defeat all four legendary ships.
Mayan puzzle locations
Complete all Mayan puzzles at the indicated location to unlock the Mayan Outfit at Tulum (coordinates 72, 404).
Symbol #1: Great Inagua; completed during DNA Sequence 4, Memory 1.
Symbol #2: Cat Island (coordinates 736, 692)
Symbol #2: Mantanzas (coordinates 340, 643)
Symbol #4: Cape Bonavista (coordinates 180, 594)
Symbol #5: Tulum (coordinates 71, 402)
Symbol #6: Pinos Isle (coordinates 337, 475)
Symbol #7: Pinos Isle (coordinates 344, 476)
Symbol #8: Tortuga (coordinates 875, 379)
Symbol #9: Long Bay (coordinates 524, 255)
Symbol #10: Isla Providencia (coordinates 503, 45)
Symbol #11: Isla Providencia (coordinates 505, 43)
Symbol #12: New Bone (coordinates 434, 113)
Symbol #13: Misteriosa (coordinates 302, 120)
Symbol #14: Misteriosa (coordinates 295, 197)
Symbol #15: Santanillas (coordinates 214, 244)
Symbol #16: Santanillas (coordinates 224, 243)
The following underwater shipwrecks can be found at the indicated location after Sequence 6-1 is completed.
Shipwreck #1: San Ignacio (coordinates 378, 769)
Shipwreck #2: Petite Caverne (coordinates 901, 264)
Shipwreck #3: Jiguey (coordinates 564, 539)
Shipwreck #4: Atocha (coordinates 632, 661)
Shipwreck #5: Black Trench (coordinates 221, 449)
Shipwreck #6: San Juan (coordinates 480, 486)
Shipwreck #7: Devil's Eyes Cave (coordinates 487, 356)
Shipwreck #8: Anotto Bay (coordinates 622, 276)
Shipwreck #9: Ambergris Key (coordinates 55, 177)
Shipwreck #10: The Blue Hole (coordinates 470, 170)
Shipwreck #11: Kabah Ruins (coordinates 768, 144)
Shipwreck #12: La Concepcion Shipwreck (coordinates 180, 296)
Shipwreck #13: Antocha (coordinates 629, 661)
Elite ship upgrade locations
Search the following locations to find the plans for the corresponding ship upgrade.
Elite Round Shot: Kabah Ruins (coordinates 769, 145)
Elite Hull: San Ignacio (coordinates 379, 770)
Elite Swivel Guns: Devil's Eye Cave (coordinates 488, 353)
Elite Harpoon: Andreas Island (coordinates 579, 720)
Elite Broadside Cannons: The Blue Hole (coordinates 471, 170)
Elite Heavy Shot: Petite Cavern (coordinates 901, 263)
Elite Fire Barrels: San Juan (coordinates 479, 487)
Elite Fire Barrel Storage: Isla Providencia (coordinates 502, 44)
Elite Ram: La Concepcion Shipwreck (coordinates 181, 296)
Giant squid attack
Swim inside the Antocha shipwreck at coordinates 630,660. While looking out one of the windows you will be able to see a giant squid take down a whale. (Video)
Easy "Killer Killer" achievement or trophy
If desired, get harpoon upgrades, harpoon storage, strength, and extra armor to make this process easier. Sail to a Killer Whale hunting location (for example, coordinates 537, 340 on the world map). After a deck hand announces the presence of a whale, Kenway will be sent with a harpoon to hunt it. Harpoon the whale and follow it, being careful when it dives. It will eventually surface again on the horizon and run at your boat. Harpoon it again to avoid taking damage. Repeat the process until the whale's health is taken down to unlock the achievement or trophy.
Easy "Redingote Up!" achievement or trophy
Go to a General Store, then select the "Hunting Goods" tab. Purchase the Red Howler Monkey Skin for 5,000 R and White Jaguar Pelt for 6,000 R. Select the "Crafting" tab at the main menu, then choose the "Hunting Outfit" option.