Here is the full list of all 41 Chivalry 2 achievements.
Deflect 100 projectiles
Get 10 unarmed kills
Kill 2000 Enemies in a Multiplayer match.
Win Lionspire 5 times
Win Dark Forest 5 times
Kill 1500 Enemies in a Multiplayer match.
Get 50 kills with siege weapons
Win Rudhelm Siege 10 times
Kill 1000 Enemies in a Multiplayer match.
Win Coxwell 5 times
Win Rudhelm Siege 5 times
Achieve 100 kills as Archer
Win as Agatha 10 times
Fire 1000 arrows
Kill 500 Enemies in a Multiplayer match.
Achieve 100 kills as Footman
Bandage yourself 3 times in one life
Win as Mason 10 times
Achieve 100 kills as Knight
Kill 250 Enemies in a Multiplayer match.
Achieve 100 kills as Vanguard
Kill 100 Enemies in a Multiplayer match.
Revive 10 downed teammates
Achieve 2 kills in a row without dying while under 25 health
Kill 50 Enemies in a Multiplayer match.
Get revived from a downed state
Successfully counter 200 attacks
Kill an enemy wielding a bastard sword, with a bastard sword
Make an enemy fall to their death
Kill 10 Enemies in a Multiplayer match.
Die from fire
Win Dark Forest 10 times
Win Dark Forest 25 times
Win Coxwell 10 times
Win Coxwell 25 times
Win Lionspire 10 times
Win Lionspire 25 times
Win Rudhelm Siege 25 times
Get 50 kills in one match
Kill an enemy with a projectile from over 100 meters
Kill 13 enemies with bread