Finish Act 2

Kill all walkers from the barn without being hurt in "Pretty Much Dead Already"

Kill 15 walkers with the sniper rifle in the gym in "Bloodletting"

Kill a Strong Walker with only melee attacks

Explode 15 heads with the Sledgehammer Strong Attacks

Headshot a screaming walker during the scream

Chop off 10 heads with the fireaxe in "What Lies Ahead"

Keep the Trailer's health over 30% at all times in "Overrun"

Kill 6 enemies with the Revolver without reloading

Become Panicked and survive

Fail 5 expeditions

Succeed in 5 expeditions

Shoot 2 heads with one bullet