Collect all snapshots.
Complete the game.
Complete Mission 11 - Deliverance.
Complete Mission 10 - Faith.
Upgrade the shotgun.
Collect all Charon's logs.
Collect all research logs.
Collect all lost stories.
Kill 5 Sirens while they are screaming.
Collect all postcards.
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.
Kill 25 zombies with pistol headshots.
Upgrade the pistol.
Recover to max health from minimum health.
Acquire the gas mask.
Kill 5 enemies in 2 seconds.
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.
Upgrade your stealth kill weapon.
Upgrade your melee weapon again!
Kill 10 Spitters with a ranged weapon.
Execute 25 downed zombies.
Kill 50 zombies with a melee weapon.
Kill 100 zombies in total.
Acquire the combat flashlight.
Collect 25 ammo packs.
Stealth kill 25 zombies.
Kill 10 enemies in a row without being detected.
Upgrade your melee weapon.
Complete Mission 5 - A Fighting Chance.
Acquire the pistol.
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 an airborne Bouncer.
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
