Complete the game.
Complete Mission 11 - Deliverance.
Complete Mission 10 - Faith.
Upgrade the shotgun.
Kill 10 Butchers.
Complete Mission 9 - Father's Day.
Complete Mission 8 - Devan.
Upgrade your melee weapon for the third time. Yeah!
Acquire the grappling hook.
Complete Mission 7 - Beauty and the Beast.
Kill 10 zombies with close range shotgun blasts.
Execute 25 downed zombies.
Upgrade the pistol.
Kill an airborne Bouncer.
Kill 25 zombies with pistol headshots.
Acquire the gas mask.
Injure a single zombie with your melee weapon, the pistol and the shotgun, then stealth kill it.
Acquire the shotgun.
Complete Mission 6 - Stories of the Dead.
Kill 10 Spitters with a ranged weapon.
Kill 10 enemies in a row without being detected.
Upgrade your melee weapon again!
Recover to max health from minimum health.
Kill 100 zombies in total.
Collect 25 ammo packs.
Acquire the combat flashlight.
Kill 50 zombies with a melee weapon.
Stealth kill 25 zombies.
Upgrade your melee weapon.
Complete Mission 5 - A Fighting Chance.
Kill 5 enemies in 2 seconds.
Acquire the pistol.
Upgrade your stealth kill weapon.
Complete Mission 4 - Marathon.
Acquire the two-way radio.
Acquire your first melee weapon.
Complete Mission 3 - Echoes.
Acquire your first stealth kill weapon.
Acquire the rope.
Complete Mission 2 - One Less Boat.
Complete Mission 1 - Smooth Sailing.
Acquire the camera.
Complete the prologue.
Kill 5 Sirens while they are screaming.
Collect all lost stories.
Collect all research logs.
Collect all Charon's logs.
Collect all postcards.
Collect all snapshots.
Complete new game+.
Find all the underground secondary areas
Find the underground labs
Complete the underground labs
Acquire the walloper
Acquire the assault rifle
Kill 10 enemies at long range with the walloper
Kill 100 enemies with the assault rifle
Collect all of Ronald's logs
Kill a Dweller using an environmental hazard
Stealth kill a Dweller
