The Unworthy Brother

The Unworthy Brother was a virtual representation of one of Edward Kenway's genetic memories, relived by a research analyst at Abstergo Entertainment through the Animus.

Description

Edward opened a pigeon coop and accepted a contract from the Assassins.

Edward traveled to Fort Chinchorro and located the pirate captain.

Captain: Many men's afraid of Kenway. "Devil," they call him. But I got one thing he don't have: this fort. I'd love to see the "devil" try to get past my men. He won't, of course, but if he did, oh I'd show him hell.
Pirate: I bet you would.
Prisoner: If you'd ever fought the Hafgufa, then you'd know what I mean.
Pirate: Tell it to the sea. I'm sick of your boasting and speaking in tongues.
Prisoner: It'll swallow you, and your ship with it, and any whales that happen to be nearby at the time.
Pirate: If it was no match for your swelled head, it don't scare me.

Edward killed the captain and escaped the area.

Edward completed the contract and received his payment.

Assassin's Creed IV: Black Flag memories

Main memories
Sequence 1: Prologue
Edward Kenway
Sequence 2: The Spanish Main
Lively Havana - ...And My Sugar? - Mister Walpole, I Presume? - A Man They Call the Sage - Claiming What's Due - The Treasure Fleet
Sequence 3: The Republic of Pirates
This Tyro Captain - Now Hiring - Prizes and Plunder - Raise the Black Flag - Sugarcane and Its Yields - Proper Defenses - A Single Madman
Sequence 4: Retribution
This Old Cove - Nothing Is True... - The Sage's Buried Secret - Overrun and Outnumbered
Sequence 5: Mistaken Motives
The Forts - Traveling Salesman - Unmanned
Sequence 6: Shifting Sands
Diving for Medicines - Devil's Advocate - The Siege of Charles-Towne
Sequence 7: The British Invasion
We Demand a Parlay - The Gunpowder Plot - Commodore Eighty-Sixed - The Fireship
Sequence 8: No Regrets
Do Not Go Gently... - Vainglorious Bastards - Marooned
Sequence 9: Muddied Waters
Imagine My Surprise - Trust Is Earned
Sequence 10: Dead Reckoning
Black Bart's Gambit - Murder and Mayhem - The Observatory
Sequence 11: To the Lees
To Suffer Without Dying - Delirium - ...Everything Is Permitted
Sequence 12: The Eagle and the Jackdaw
A Governor No Longer - Royal Misfortune - Tainted Blood - Ever a Splinter
Sequence 13: Epilogue
The End - How Grand, Master Kenway!

Templar hunts
Opía Apito
The Taíno Assassin - Templar Ships - Right-Hand Man - The Trail of Lucia Márquez
Rhona Dinsmore
Bureau Under Attack - A Thief in the Market - Arms Race - Flint's End
Antó
The Maroon Assassin - Recruiting Maroons - Under Attack - The Commander's Ruse
Vance Travers
Oh Brother... - The Other Brother - Upton's Sorrow - Queen of Pirates, King of Fools

Assassination contracts

Naval contracts
An Eye for an Eye - The Law of the Ocean - A Spanish Plague - Driftwood - Silk on the Waves - Contraband - Private Escort - Blind Justice - The Realities of War - Hunter Gatherer - Papers, Please - Weathering the Storm - Smuggler's Den - A Personal Matter - The Final Contract

DLC
Aveline missions
The Rebel Camp - The Fort - The Tower
Freedom Cry missions
The Calm Before the Storm - A Common Enemy - Laying the First Brick - A Ship of His Own - Lifting the Veil - A Scientific Inquiry - Plant the Seeds - Down with the Ship - De Fayet's Last Stand

Resynced missions
Side Quests
[Art Lover] - [Former Glories] - [A Finished Home] - [Damn Fine Gear] - [Mayan Mysteries] - [Captain Stede Bonnet] - [Blackbeard's Treasure]
Officer Quests
Lucy Baldwin
[A Proper Shipwright] - [The One With the Gun] - [Plantain!] - [Big Wig]
The Padre
[A Second Chance] - [Loyalty, Discipline, and Courage] - [If Thy Right Hand Offend Thee] - [The Other Cheek]
Tobias Smith
[No Box Dark Enough] - [All Love Must End] - [Very Little, But Something]
A World Without Gold
[That Bastard Maynard] - [Not Even a Real Captain] - [What the Devil!] - [It's a Start] - [I Just Want To Talk] - [Not Our Natural Allies] - [A Cockalorum] - [A World Without Gold]
Local Events
Abaco Island
[A Just Reward]
Arroyos
[William The Whale]
Cayman Sound
[Stalking Danger]
Cumberland Bay
[Sunken Spanish Treasure]
Great Inagua
[Cat Distribution System]
Havana
[Easy Pickings] - [Monkey Business] - [Smelly Sailors] - [The Golden Locket]
Kingston
[Beat the Chest] - [Crow's Nest] - [Tilting at Windmills]
Nassau
[A Moment of Freedom] - [Black Market Shopping] - [Simple Performance] - [The Cursed Trinket] - [Visitor of Poor]
Port Royal
[Tax Collector]
Santanillas
[Divine Secret Kept]
Animus Rifts
[Wayward Souls] - [Wayward Desires] - [Wayward Minds] - [True Purpose]