What the hell *are* you? Achievement
What the hell *are* you?20
Take a russian Dog Tag in the forest ambush in Rock And A Hard Place
At the start of the mission "Rock and a Hard Place", you will be ambushed by Russians in the forest. Flank up the side and knife one of them to obtain their dog tag and this achievement.
Only a knife from behind will trigger the dogtag animation. If you try knifing in their face you will just swipe at the guy with your knife.This achievement is best attained on "Easy" mode!