Assassin's Creed: Brotherhood Cheats - Xbox 360

Achievements
Complete each achievement to receive the allotted gamerscore:

.. .- -- .- .-.. .. ...- . (20) - Solve all of Subject 16's Puzzles.
A Knife to the Heart (50) - Secure the Apple of Eden.
Abstergo Employee of the Month (20) - Get every bonus at least once (Multiplayer Only).
Ahead of the Curve (20) - Perform a double or a triple escape (Multiplayer Only).
Amen (20) - Discover the Shrine in the Basilica di San Pietro.
Bang! (20) - Destroy the Machine Gun.
Battle Wounds (20) - Complete DNA Sequence 1.
Dust to Dust (20) - Find 1 Artifact in the Present.
Fast Learner (25) - Kill your target and escape your pursuer in less than 10 seconds (Multiplayer Only).
Fixer-Upper (20) - Complete DNA Sequence 3.
Fly Like an Eagle (10) - Jump with the parachute off the top of Castel Sant' Angelo.
Forget Paris (20) - Complete DNA Sequence 6.
Fundraiser (20) - Complete DNA Sequence 5.
Gladiator (20) - Discover the Shrine in Il Colosseo.
Bloody Sunday (20) - Complete DNA Sequence 7.
Boom! (20) - Destroy the Bomber.
Brotherhood (20) - Recruit 3 Assassins.
Capture the Flag (30) - Remove All Borgia Flags in Rome.
Déjà vu (20) - Replay a Memory.
Download Complete (40) - Reach Level 50 (Multiplayer Only).
Golden Boy (20) - Discover the Shrine in the Terme di Traiano.
Perfectionist (20) - Earn 3 gold medals from the Animus Virtual Training Program
Plumber (20) - Discover the Shrine in the Cloaca Maxima.
Principessa in Another Castello (20) - Complete DNA Sequence 4.
Requiescat In Pace (20) - Complete DNA Sequence 9.
Role Model (20) - Get all the Co-op bonuses in 1 session (Multiplayer Only).
Rome in Ruins (20) - Complete DNA Sequence 2.
Sanctuary! Sanctuary! (20) - Find a secure place to hide and re-enter the Animus.
Serial Killer (20) - Perform a Speed Kill Streak of 10.
Home Improvement (20) - Upgrade 5 buildings in the Antico district.
In Memoriam (20) - Collect All Feathers.
Job skills (20) - During Open Conflict, kill your target and escape (Multiplayer Only).
Kaboom! (20) - Destroy the Tank.
Mailer Daemon (20) - Access your email in 2012.
Needle in a Haystack (5) - Kill your target while hidden in a hay bale (Multiplayer Only).
One-Man Wrecking Crew (20) - Discover the Shrine in Palazzo Laterano.
Overachiever (20) - Score 750 points or more on a single kill (Multiplayer Only).
Perfect Recall (30) - Achieve 100% Synchronization with a Sequence.
Show Off (20) - Complete 10 Guild Challenges.
Splash! (20) - Destroy the Naval Cannon.
Technical Difficulties (10) - Attempt to access DNA Sequence 9 for the first time.
The Gloves Come Off (10) - Win the highest bet at the Fights.
Tower Offense (20) - Burn All Borgia Towers.
Spring Cleaning (10) - Kill a guard with a broom.
Strong Closer (20) - Take the lead 10 seconds before the end of the session and go on to win (Multiplayer Only).
Synchronization Established (10) - Complete an entire Session with at least one kill (Multiplayer Only).
Undertaker 2.0 (20) - Discover the Shrine in the Catacombe di Roma.
Vittoria Agli Assassini (20) - Complete DNA Sequence 8.
Welcome to the Brotherhood (20) - Train a recruit up to the Rank of Assassin.
Your Wish is Granted (10) - Throw money in a well.

Additionally, there are then The Da Vinci Disappearance DLC achievements:

Airstrike (20) - Kill 10 guards with a single arrow storm.
GPS (20) - Complete the Da Vinci Disappearance.
Grand Theft Dressage (20) - Steal 5 horses from their riders, while remaining on horseback.
High Roller (10) - Win 10,000 florins playing Hazard.
il Principe (100) - Receive 100% synch in ACB and full synch in all missions of the Da Vinci Disappearance.
Clowniing Around (30) - Beat up the 5 thirsty harlequins.
Easy Come, Easy Go (5) - Pay 500 florins to an orator, then pickpocket him afterward.
Going Up (5) - Kill a guard with the bag that drops from a lift.
Special Delivery (20) - Double Assassinate from a parachute.
Strong-Arm (10) - Throw a Long Weapon, Heavy Weapon, and Smoke bomb more than 10 m at a guard.

Unlock Raiden
Complete all of the tasks in the Animus 2.0 training mode.

Unlock Capes
Borgia Cape - Collect the 100 Borgia Flags.
Medici Cape - Complete the Auditore Trail Mnemonic in Assassin's Creed: Project Legacy.
Venetian Cape - Complete the Auditore Trail Mnemonic in Assassin's Creed: Project Legacy.
Auditore Cape - Repair everything to get 100% on Rebuilding Rome.

Unlock Rewards
Armor/Dagger of Brutus - Complete all 6 Romulus Lairs and unlock the Romulus treasure room.
Bartolomeo's Axe - Attain rank 1 in the Mercenaries Guild challenges.
La Volpe's Bite - Attain rank 1 in the Thieves Guild challenges.
Maria's Dagger - Attain rank 1 in the Courtesan Guild challenges.
Parachute - Destroy all of Leonardo Da Vinci's War Machines.
Sword of Altair and assassins crest - Complete all assassins guild challenges.
Courtesans poison guards - Attain rank 5 in Courtesans guild challenges.
Faction crest - Attain rank 5 in the corresponding guild challenges.
Faction discount - Attain rank 10 in the corresponding guild challenges.
Thieves pickpocket guards - Attain rank 5 in Thieves guild challenges.
War horse spawned at stables - Renovate all stables in Rome.

Unlock Cheats
Ride the Unicorn - 100% Sync in Sequence 1.
Buns of Steel - 100% sync in sequence 2.
Killing Spree - 100% sync in sequence 3.
Sisterhood - 100% sync in sequence 4.
Ultimate Guild - 100% sync in sequence 5.
Unlimited Assassins Signals - 100% sync in sequence 6.
Desmond Everywhere - 100% sync in sequence 8.

Get the Scimitar & Other Non-Purchasable Weapons
The heavy sheath is needed for this glitch to work. Equip a heavy weapon and throw it, then take the wanted weapon and sheath it. Now, replay the sequence 2 memory wherein Niccolo has you buy equipment. You will now find the weapon in the cupboard of the hideout's weapon room.