Make 10 Spiders flip belly-up.

Escape from the Red Line.

Use 10 Lever Switches.

Escape the chasing Nazis on the REICH level without being caught once.

Complete training sequence.

Become a true ranger.

Kill a librarian.

Use a Medkit 75 times.

Wipe your Gas Mask 20 times.

Kill 100 enemies with shotguns.

On the level DEPOT silently kill the first guard and break into the Fascist station unnoticed.

Kill 50 humans with pneumatic weapons.

Kill 100 Human Enemies.