21Achievements
Abandoned Factory
Survive the first campaign level.
(81.6%)
Town Square
Survive the second campaign level.
(54.8%)
Laboratory Basement
Survive the third campaign level.
(28.9%)
Observatory
Survive the fourth campaign level.
(21.2%)
Storm Drain
Survive the fifth campaign level.
(9.3%)
Reservoir
Survive the sixth campaign level.
(6.2%)
Bridge
Survive the seventh campaign level.
(5.4%)
Sangamon Forest
Survive the eight campaign level.
(4.6%)
Peoria Caverns
Survive the ninth campaign level.
(3.9%)
Radio Tower
Survive the final campaign level.
(3.7%)
C-Note
Kill 100 enemies.
(57.4%)
G-Note
Kill 1000 enemies.
(14.9%)
Quad Damage
Kill four enemies at once with an explosive.
(30.4%)
I Like The Night Life, Baby
Finish a nighttime campaign level without turning on the flashlight.
(5.9%)
Smile, You Son of a...
Blow the head off of something large and toothy.
(2.0%)
Tubthumping
Survive ten waves in a survival map.
(6.7%)
To The Teeth
Acquire all guns and upgrades in campaign mode.
(4.2%)
Overkill
Acquire all guns and upgrades in a survival game.
(2.3%)
Fireworks Factory
Acquire 200 throwables in campaign mode.
(1.7%)
Ammo Conversation
Survive a nighttime campaign level using only the knife.
(1.1%)
Executioner
Decapitate each enemy type at least once.
(0.2%)