THE FIRST KILLING OF AN INFECTED
KILLING THE FIRST 10 ZOMBIES
KILL 100 ZOMBIES
KILL 250 ZOMBIES
KILL FIFTY INFECTED
FIRST MONEY
EARN 10,000 DOLLARS
EARN 100,000 DOLLARS
EARN 50,000 DOLLARS
EARN HALF MILLION DOLLARS
THE FIRST MURDER IN THE HEAD
KILL 10 ZOMBIES IN THE HEAD
KILL 100 ZOMBIES IN THE HEAD
KILL 200 ZOMBIES IN THE HEAD
KILL 50 ZOMBIES IN THE HEAD
KILL 500 ZOMBIES IN THE HEAD