10 And the Horse You Rode in OnStory progression in Act 5, Chapter 1
10 Back to BasicSuccessfully complete the 5 lessons of Multiplayer Training Grounds
10 Beat the MeatflagCapture 10 meatflags in Submission (public)
10 Crossed SwordsWin 10 chainsaw duels (any mode)
10 Crowd ControlMelee 10 enemies down with the Boomshield equipped (any mode)
10 Does This Look Infected to You?Story progression in Act 5, Chapter 5
10 Escort ServiceStory progression in Act 1, Chapter 4
10 Girl About TownStory progression in Act 1, Chapter 6
10 Freebaird!Story progression in Act 2, Chapter 5
10 Better Wrapped in BeaconStory progression in Act 4, Chapter 3
10 Have Fun Storming the CastleStory progression in Act 4, Chapter 6
10 Brumak RodeoStory progression in Act 5, Chapter 4
10 Green as GrassTrain the rook (any difficulty)
10 HeartbrokenStory progression in Act 2, Chapter 6
10 It's a Trap!Story progression in Act 1, Chapter 2
10 It's Good to be the KingWin 10 rounds of Guardian as the leader (public)
10 Kick 'Em When They're DownPerform ALL 11 unique executions on a downed enemy
10 Longitude and AttitudeStory progression in Act 3, Chapter 3
10 Once More, With FeelingPerform 30 perfect active reloads (any mode)
10 One-Night StandComplete 1 chapter in co-op on any difficulty (Marcus or Dom)
10 Organ GrinderKill 30 enemies with a cover mounted Mulcher (any mode)
10 Pound of FleshUse a meatshield to save your life 10 times (any mode)
10 Said the Spider to the FlyKill 10 enemies with a planted grenade (any mode)
10 Shock and AweKill 30 enemies with the heavy Mortar (any mode)
10 Smells Like VictoryKill 30 enemies with the Scorcher Flamethrower (any mode)
10 Standing Here, Beside MyselfWin 3 matches of Wingman (public)
10 Tanks for the MemoriesStory progression in Act 3, Chapter 4
10 That Sinking FeelingStory progression in Act 2, Chapter 4
10 There's a Time for UsStory progression in Act 4, Chapter 2
10 Water SportsStory progression in Act 3, Chapter 6
10 You Are the Support, SonStory progression in Act 5, Chapter 2
10 You Go Ahead, I'll Be FineWin 3 matches of King of the Hill (public)
10 PhotojournalistSubmit a spectator photo
10 Rookie GearEarn enough multiplayer experience to reach level 5 (Public only)
15 Pack RatRecover 20 collectibles (any difficulty)
15 Bound by a Shared PastWin a Wingman match on each of the 5 Flashback Map Pack maps
15 Forged in the FireWin a Wingman match on each of the 3 Combustible Map Pack maps
15 More Mystery, Less HistoryWin a multiplayer match on each of the 5 Flashback Map Pack maps (any mode except Wingman)
15 The Roof! The Roof! The Roof…Win a multiplayer match on each of the 3 Combustible Map Pack maps (any mode except Wingman)
15 The Weather Outside Is LethalWin a multiplayer match on each of the 4 Snowblind Map Pack maps (any mode)
150 Suicide MissionaryComplete ALL campaign acts on Insane difficulty
20 A Parting GiftKill 10 enemies with a grenade while down but not out (any mode)
20 Dirty, Dirty HordeSurvive the first 10 waves of Horde (any difficulty, any map)
20 Never Eat Red SnowComplete waves 1 through 10 on all Snowblind Map Pack maps in Horde (any difficulty)
20 Seasoned GearEarn enough multiplayer experience to reach level 15 (Public only)
20 Skeletons in your ClosetComplete waves 1 through 10 on all Flashback Map Pack maps in Horde (any difficulty)
20 Trial by, and on, FireSurvive first 10 Horde waves on Combustible Map Pack maps as a team
25 Tourist of DutyComplete ALL Campaign acts on Casual difficulty
25 Icy Dead PeopleComplete waves 1 through 50 on any Snowblind Map Pack map in Horde (any difficulty)
30 Around the World, AgainWin a Multiplayer match on each map (any mode)
30 CompletionistRecover ALL 41 collectibles (any difficulty)
30 Hoard the HordeSurvive ALL 50 waves of Horde (any difficulty, any map)
30 Open RelationshipComplete 10 chapters in Co-Op on any difficulty (Marcus or Dom)
30 Party Like It's 1999Play 1999 rounds of multiplayer (any mode)
30 Takes a LickingMelee 30 Tickers (any mode)
30 Variety is the Spice of DeathKill an enemy with every weapon in the game (any mode)
30 Battle-Tested GearEarn enough multiplayer experience to reach level 25 (Public only)
5 CollectorRecover 5 collectibles (any difficulty)
5 Frigid Body DynamicsPlay a multiplayer match on each of the 4 Snowblind Map Pack maps (any mode)
50 Friends with BenefitsComplete ALL acts in Co-Op on any difficulty (Marcus or Dom)
50 Guerilla TacticianComplete ALL campaign acts on Normal difficulty
50 Seriously 2.0Kill 100,000 enemies (any mode)
50 Battle-Hardened GearReach level 50 and play a match on each of the 4 Snowblind Map Pack maps (Public only)
75 Artist of WarComplete ALL campaign acts on Hardcore difficulty
75 Annex: Now With Execution RulesWin an Annex match on each Flashback and Combustible Map Pack map (public matches only)
75 Veteran GearReach level 100 and win a match on each of the 4 Snowblind Map Pack maps (Public only)