Complete the following achievements to unlock Xbox Live Gamerscore points.

Achievement	How to unlock
A Complete Set (20 points)	See all the optional characters settled at the Homestead.
Abstergo Entertainment (10 points)	Reach level 20 in the multiplayer mode.
All Washed Up (40 points)	Complete all Naval Missions aboard the Aquila.
An Extraordinary Man (10 points)	Complete the Encyclopedia of the Common Man.
Blowing in the Wind (20 points)	Retrieve every page for one of Ben Franklin's Almanacs.
Bring Down the House (20 points)	Explore Fort Wolcott.
By Invitation Only (20 points)	Be invited to join a Club.
Caged Wolf (20 points)	Complete Sequence 8.
Circus Act (10 points)	Kill 15 guards with a single cannon shot.
Completionist (50 points)	Complete ALL progress tracker grid entries.
Coureur des Bois (10 points)	Exchange undamaged pelts at all different general stores.
Difficult End (20 points)	Complete Sequence 11.
Entrepreneur, not Pirate! (20 points)	Complete all 12 Privateer Contracts.
Eye Witness (10 points)	Witness a predator killing an enemy.
Fin (30 points)	Complete each of the epilogue missions unlocked after the credits roll.
Grim Expectations (20 points)	Complete Sequence 10.
Heroes are Born (20 points)	Complete Sequence 4.
House Party (10 points)	Recruit any of the Artisans and see them settled on the Homestead.
How D'ya Like Them Apples (20 points)	Complete Sequence 3.
Hunter/Killer (20 points)	Reach sequence 10 in a map on Wolfpack multiplayer mode.
In Good Standing (30 points)	Complete all challenges for any of the Clubs.
Jager Bomb (20 points)	After becoming fully Notorious, kill 10 Jagers before losing your notoriety.
Kidd Gloves (30 points)	Uncover the mystery of Oak Island.
Magna cum Laude (20 points)	Have a Trainee reach the Assassin Rank.
Man of the People (20 points)	Liberate all districts in Boston OR New York.
Monopoly Man (10 points)	Send a convoy to Boston, New York and the Frontier.
Multitasking (20 points)	Complete 50% of the Progress Tracker entries.
Mystery Guest (20 points)	Complete Sequence 1 & 2.
No Good Deed Goes Unpunished (20 points)	Open the Temple Door and learn Desmond's fate.
Original Gamer (20 points)	Win a game of Fanorona, Morris and Bowls on the Homestead.
Patent Not Pending (10 points)	Craft one of Franklin's inventions to decorate your Manor.
Perfectionist (50 points)	Complete 100% of all main mission constraints.
Personalized (10 points)	Customize your multiplayer Profile and Character.
Predator (10 points)	Hang 5 enemies by using rope darts.
Prince of Thieves (10 points)	Loot a convoy without killing any of its guards.
Rude Awakening (10 points)	Re-Enter the Animus.
Spit Roast (20 points)	Perform a double assassination using a musket.
Tea is for Englishmen (20 points)	Complete Sequence 6.
The Day the Templars Cried (20 points)	Complete Sequence 5.
The Sum of Truth (50 points)	Complete Sequence 12.
The Truth Will Out (20 points)	Unlock a hacked version of one of the Abstergo videos in the story quest.
The Whites of Their Eyes (20 points)	Complete Sequence 7.
Tumblehome (10 points)	Upgrade the Aquila.
Two if by Sea (20 points)	Complete Sequence 9.
Whit's fur ye'll no go by ye! (10 points)	Block a firing line 5 times by using a human shield.
Winning Team (20 points)	Be on the winning team at the end of a multiplayer game session.