MAG
44 Achievements
449-549h
PS3
Angel of Mercy
25 enemies killed in their incapacitated state over a career.
33.7%
How to unlock the Angel of Mercy achievement in MAG - Definitive Guide
When you kill someone, he will be incapacited most of the time (that means he can be revived by his teammates). You can still shoot at him to really kill him. Do this 25 times. Very easy to get.