Frag Robber
Kill some enemies severely injured by another player, while that player is still close to the victim
Robin Hood
Make headshots with bow from long range
Kick their asses
Kick some enemies into water, fire or a large fall
Dutch Courage
Kill some enemies while being under whiskey's effect
Defuser
Pick lit dynamite sticks thrown by other players
Best Friends
Kill a few Steam friends with bare hands
More Dead Than Alive
Get some frags while your health is lower than 15 HP
A Fistful of Dynamite
Get some kills with explosive chain reaction effect (their own dynamite kills them)
The Unforgiven
Kill enemies ending their streak of 7 or more kills
Detonator
Get some kills shooting at a lit dynamite
Overweighted
Kill enemies while reaching 100% overencumber due weapon accumulation
Overpowered
Kill enemies with dual Colt Walkers
My Name is Nobody
Your first kill in a game among other human players
Level: Rancher
Complete 25 games
Level: Gunfighter
Complete 100 games
Level: Legend
Complete 500 games
Hat-Shooter
Drop 15 enemy player's hat by shooting over their heads
Certified mobile cannon operator
Complete the mobile cannon tutorial
Sliding killer
Kill 25 enemies while sliding
Bouncing around
Kill 25 enemies by kick right after wall-jumping