| Picture
| Name | Description |  |
 | Prison Breakout | Completed tutorial level on any skill level. | 10
|
 | Completed Act 1 on Casual | Complete Act 1 on Casual Difficulty. | 10
|
 | Completed Act 2 on Casual | Complete Act 2 on Casual Difficulty. | 10
|
 | Completed Act 3 on Casual | Complete Act 3 on Casual Difficulty. | 10
|
 | Completed Act 4 on Casual | Complete Act 4 on Casual Difficulty. | 10
|
 | Completed Act 5 on Casual | Complete Act 5 on Casual Difficulty. | 10
|
 | Mercenary | Complete all acts on Casual Difficulty. | 10
|
 | Completed Act 1 on Hardcore | Complete Act 1 on Hardcore Difficulty. | 20
|
 | Completed Act 2 on Hardcore | Complete Act 2 on Hardcore Difficulty. | 20
|
 | Completed Act 3 on Hardcore | Complete Act 3 on Hardcore Difficulty. | 20
|
 | Completed Act 4 on Hardcore | Complete Act 4 on Hardcore Difficulty. | 20
|
 | Completed Act 5 on Hardcore | Complete Act 5 on Hardcore Difficulty. | 20
|
 | Soldier | Complete all acts on Hardcore Difficulty. | 20
|
 | Completed Act 1 on Insane | Complete Act 1 on Insane Difficulty. | 30
|
 | Completed Act 2 on Insane | Complete Act 2 on Insane Difficulty. | 30
|
 | Completed Act 3 on Insane | Complete Act 3 on Insane Difficulty. | 30
|
 | Completed Act 4 on Insane | Complete Act 4 on Insane Difficulty. | 30
|
 | Completed Act 5 on Insane | Complete Act 5 on Insane Difficulty. | 30
|
 | Commando | Complete all acts on Insane Difficulty. | 30
|
 | Time to Remember | Recover one-third of the COG tags on any difficulty. | 10
|
 | Honor-Bound | Recover two-thirds of the COG tags on any difficulty. | 20
|
 | For the Fallen | Recover all of the COG tags on any difficulty. | 30
|
 | My Love for You Is Like a Truck | Defeat a Berserker on Hardcore Difficulty. | 30
|
 | Broken Fingers | Defeat a Corpser on Hardcore Difficulty. | 30
|
 | A Dish Best Served Cold | Defeat General RAAM on Hardcore Difficulty. | 30
|
 | Zen and the Art of Reloading | Perform 25 perfect active reloads on any difficulty. | 10
|
 | Zen and the Art Part 2 | Perform 5 perfect active reloads in a row on any difficulty. | 20
|
 | Clusterluck | Kill 3 enemies at once 10 different times on any difficulty. | 20
|
These achievements can be completed through co-op mode on the same system, or two players online.
These achievements can only be completed during online play.
| Picture
| Name | Description | |
 | A Series of Tubes | Host and complete 50 ranked matches. | 20
|
 | Don't You Die On Me | Revive 100 teammates in ranked matches | 10
|
 | Fall Down Go Boom | Kill 100 enemies in ranked matches with the Boomshot | 20
|
 | Pistolero | Kill 100 enemies in ranked matches with a pistol. | 20
|
 | The Nuge | Kill 100 enemies in ranked matches with the Torque Bow | 20
|
 | I Spy with My Little Eye | Kill 100 enemies in ranked matches with the Longshot | 20
|
 | Don't Hurt 'Em | Kill 100 enemies in ranked matches with the Hammer of Dawn. | 20
|
 | It's a Massacre | Kill 100 enemies in ranked matches with the Chainsaw. | 10
|
 | Curb Appeal | Kill 100 enemies in ranked matches with the curb stomp. | 20
|
 | Capital Punishment | Kill 100 enemies in ranked matches with an execution. | 20
|
 | Is It a Spider | Kill 100 enemies in ranked matches with grenade tag. | 30
|
 | The Money Shot | Kill 100 enemies in ranked matches with a headshot. | 20
|
 | Always Remember Your First | Finish playing a versus ranked match. | 10
|
 | Don't Hate the Player | Finish with the highest points in a ranked match. | 10
|
 | Mix It Up | Win a ranked match in every versus game type. | 20
|
 | Around the World | Win a ranked match on every versus map. | 30
|
 | Can't Touch Me | Win 10 ranked matches without losing a round. | 20
|
 | Seriously ... | (Xbox only) Kill 10,000 people in versus ranked match total. | 50
|
 | THIS! IS! ANNEX! | (Xbox only) Complete 100 multiplayer matches of 3+ rounds in Annex and capture 3 objectives in each match. | 40
|
 | Inconceivable! | (Xbox only) Win 20 rounds of multiplayer matches in Annex by fewer than 5 points. | 30
|
 | Nub Pwn3r | (Xbox only) Win 20 rounds of multiplayer matches in Annex by shutting out the opposing team. | 30
|
 | You Down With E.P.I.C? | (Xbox only) Win a multiplayer match of 3+ rounds in any game type on 6 different downloadable maps. | 30
|
 | Green Thumb | (Xbox only) Win 20 multiplayer matches of 3+ rounds in any game type on the Garden multiplayer map. | 30
|
 | Mind the Gap | (Xbox only) Win 20 multiplayer matches of 3+ rounds in any game type on the Subway multiplayer map. | 30
|
 | Purdy Mouth | (Xbox only) Win 20 multiplayer matches of 3+ rounds in any game type on the Bullet Marsh multiplayer map. | 30
|
 | All That Juice | (Xbox only) Win 20 multiplayer matches of 3+ rounds in any game type on the Process multiplayer map | 30
|
.
