Complete the indicated task to unlock the achievement.

Achievement	How to unlock
Air Control	Take that poor bird down.
Call of newbie	Finish the guide.
Gasoline sauna	Kill xxx soldiers with one oil drum.
In reality, this is not going to work	Use machine gun only to eliminate an Apache.
Legend of the West	Finish the desert.
Meat tenderizer	Cruel killer never cares about what his tank track is rolling.
Rational shooting	Destroy, explode, and keep grace.
Tangos insight	Kill xxx soldiers in single round.
Unlimited fire works	Kill xxx soldier with one shell.
Who's the boss now?	Finish the desert in xxx minutes.