Fully upgrade one weapon category.

Get enemies to kill each other 50 times.

Get 50 headshot bonuses in Campaign.

Clear "HIT AND RUN."

Clear the giant slide.

Hit the jackpot on a vending machine.

Clear the swimming stage.

Complete Truck Ride to Airfield

Complete Eder Dam, Germany

Complete Benouville, France (Day)

In Shadows of Evil, use the rocket shield attack to kill at least 10 zombies in one burst.

Complete the American Missions