Complete the following achievements to unlock Xbox Live Gamerscore points.

Achievement	How to unlock
... And stay dead! (80 points)	Kill the target in 7 different ways.
Convenience is key (10 points)	Kill the target by shooting nearby explosive barrels.
Fast-moving target (10 points)	Shoot the target in his car.
Grenadier (10 points)	Kill the target with a grenade.
In the middle (10 points)	Kill the target with a chain reaction.
No escape (10 points)	Kill the target in the vehicle by shooting its weakspot.
Saved by the bell (10 points)	Crush the target with a bell.
Sweating bullets (10 points)	Shoot and kill the target.
Threat assessment (40 points)	Observe the target and correctly correctly choose to leave or kill.