Steam achievements:
ACHIEVEMENT – HOW TO UNLOCK
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
in PC Cheats