Arnie                   - 50 kills with M249
Call of War             - Finished the game on the hardest difficulty
Cavemen                 - Finished the fifth level
Customizer!             - Discovered the options screen
Da Bomb!                - Finished the ninth level
Deep Sh*t               - Finished the fourth level
Dumbass!                - Died from his own grenade
Fearless!               - Watched the intro on the hardest difficulty
Good enough             - Finished the game
Headhunter              - Finished the sixth level
Hillbilly               - 50 kills with M1014
Jerry                   - 50 kills with UMP
Misplaced Luggage       - Finished the seventh level
Nebelwerfer             - 20 kills with grenades
Out of Ammo             - 20 kills with melee attacks
Out of the ice          - Finished the first level
Red Hawk Down           - Finished the third level
Rocket Jumper           - 20 kills with M136
Sharpshooter            - 50 headshot kills
Son of the revolution   - 50 kills with AK47
Think-Tank              - Finished the eighth level
US Grunt                - 50 kills with M16
Vasya                   - 50 kills with SVD
Yar har, fiddle di dee! - Finished the second level