Pavlov

Knock off 100 helmets with headshots.

Kill 1000 players online.

Kill 1000 Zombies.

Survive 5 rounds in Zombies Mode.

Complete the killhouse with a perfect score 5 times.

Backblast a player.

Get 25 grenade kills.

Destroy 5 tanks.

Kill 100 bots.

Kill 10 soldiers as the monster in The Hide.

Kill the monster in The Hide.

Complete the tutorial.

Plant the bomb in Search & Destroy.

Defuse the bomb using the keypad.

Defuse the bomb using the clippers.

Win a round as innocent in TTT.

Win a round as traitor in TTT.

Kill a player with a grenade after dying.

Kill 10 chickens.

Win as the monster in The Hide.

Win as the soldier in The Hide.

Win in King of the Hill.