Defeat 50 enemies with the 92FS - 9mm

Defeat 20 enemies with the Pistole

Complete "Last Rites"

Complete "It Takes Two"

Complete "Operation Siberian Strike"

Complete the first interrogation

Complete the Campaign using max one medkit per mission

Kill Maddox once and for all ("No Loose Ends")

Retrieve your weapon without being detected ("Burning Bridges")

Kill Major Vladic ("And Justice For All")

Complete any act without using medkits

Kill all enemies in the beach houses without causing an alarm ("Leave No Man Behind")