Successfully complete the indicated tasks an you'll unlock these outfit:
Outfit: Bandito Outfit
Pre-requisite: Defeat a Bandito gang member
Requirements:
Scrap 1: In a chest inside a tent on a plateau in Sidewinder Gulch, south of the crossroads
Scrap 2: Successfully complete a Nightwatch job in Chuparosa
Scrap 3: Defeat all in players in a round of Liar's Dice in Casa Madrugada
Scrap 4: Claim a Bandito bounty alive
Scrap 5: Defend the residents of Mexico from Bandito attacks
Scrap 6: Purchase at the general store in Chuparosa
Bonus: Banditos and outlaws in Mexico consider you a friend unless you take aggressive action
Outfit: Bollard Twins Outfit
Pre-requisite: Defeat a Bollard Twins gang member
Requirements:
Scrap 1: Inside the Thieves' Landing warehouse where you rescue Shaky during the "On Shaky's Ground" mission
Scrap 2: Successfully complete a Nightwatch job at MacFarlane's ranch
Scrap 3: Win at Horseshoes at MacFarlane's ranch
Scrap 4: Claim a Bollard Twins Gang bounty alive
Scrap 5: Defend residents of Hennigen's Stead from the Bollard Twin's gang
Scrap 6: Purchase from the tailor in Thieves' Landing
Bonus: Bollard Twins gang members consider you a friend unless you take aggressive action
Outfit: Bureau Uniform
Pre-requisite: Get a 100% completion in the game
Requirements: None
Bonus: Immunity from law enforcement. No eyewitnesses or local enforcement; bounty does not increase. Posses, Bounty Hunters, Marshals, and Mexican Army will not pursue you.
Outfit: Cowboy Outfit
Pre-requisite: Start Red Dead Redemption
Requirements: None
Bonus: None
Outfit: Deadly Assassin (pre-order only)
Pre-requisite: Pre-order from a participating video game store
Requirements:
Scrap 1: In a chest in Coots Chapel
Scrap 2: Clear out Twin Rocks Hideout
Scrap 3: Capture or kill Moe van Barr (New Austin Bounty target)
Scrap 4: Win a duel in Amarillo
Scrap 5: Successfully complete the "American Appetites" Stranger mission
Bonus: Dead Eye regenerates twice as fast
Outfit: Duster Coat
Pre-requisite: Reach the "Peacemaker" Honor Rank
Requirements: None
Bonus: None
Outfit: Elegant Suit
Pre-requisite: Purchase from the tailor in Thieves' Landing
Requirements: None
Bonus: Ability to cheat at poker
Outfit: Gentleman's Attire
Pre-requisite: None
Requirements: Link your gamertag with the Rockstar Social Club
Bonus: Allows you to enter high-stakes poker games in Blackwater
Outfit: Legend Of The West
Pre-requisite: None
Requirements: Reach Rank 10 in all Ambient Challenges: Treasure Hunter, Survivalist, Master Hunter, and Sharpshooter
Bonus: Increased Dead Eye ability
Outfit: Mexican Poncho
Pre-requisite: Purchase any safe house in Mexico
Requirements: Found inside your Mexican safehouse
Bonus: None
Outfit: Rancher's Clothing
Pre-requisite: None
Requirements: Successfully complete "The Outlaw's Return" mission
Bonus: None
Outfit: Reyes' Rebels Outfit
Pre-requisite: Successfully complete "An Appointed Time" mission
Requirements:
Scrap 1: In a chest inside the graveyard in Sepulcro, near an outer wall, close to where you had the option to execute De Santa
Scrap 2: Successfully complete the "Poppycock" Stranger's task
Scrap 3: Successfully complete a Horsebreaking job in Chuparosa
Scrap 4: Successfully complete the "Love is the Opiate" Stranger's task
Scrap 5: Win at Five Finger Fillet in Torquemada
Scrap 6: Purchase the general store in Escalera
Bonus: The Mexican authorities will treat you kindly. Mexican Law Posses and the Mexican Army will not pursue you.
Outfit: Treasure Hunter Outfit
Pre-requisite: Defeat a Treasure Hunter gang member
Requirements:
Scrap 1: In the chest in the abandoned house in Silent Stead, Southwest of Rathskeller Fork
Scrap 2: Successfully complete "California" Stranger's task
Scrap 3: Make a profit playing Blackjack at Rathskeller Fork
Scrap 4: Claim a Treasure Hunter bounty alive
Scrap 5: Successfully complete Gaptooth Breach Hideout
Scrap 6: Purchase from the tailor in Thieves' Landing
Bonus: Treasure Hunters consider you a friend unless you take aggressive action
Outfit: U.S. Army Uniform
Pre-requisite: Successfully complete "An Appointed Time" mission
Requirements:
Scrap 1: In Aurora Basin, inside a cabin on the small lake
Scrap 2: Win at Arm Wrestling in the Pacific Union Railroad Camp
Scrap 3: Eliminate all other players in a game of Poker in Blackwater
Scrap 4: Successfully complete the "Lights, Camera, Action" Stranger's task
Scrap 5: Successfully complete a Nightwatch job in Blackwater
Scrap 6: Purchase from the tailor in Blackwater
Bonus: You will look like U.S. Army enlisted men, but your disguise will be unconvincing.
Outfit: U.S. Marshal Uniform
Pre-requisite: Successfully complete "The Last Enemy That Shall Be Destroyed" mission
Requirements: Successfully complete all U.S. Gang Hideouts in a single 24-hour period of game time
Bonus: You will be considered part of the law enforcement in the U.S. U.S. Posses and Marshals will not pursue you.