Posted by: Oleelo2
do you have to play the whole campain agen without killing the engeneers?
sorry for my bad english
All the time you're in Mombasa Streets, DO NOT DIRECTLY HARM AN ENGINEER.
Don't Plasma Pistol Overcharge it. Don't even shoot at it, because when you kill the Brute Captain accompanying it and it's failsafe activates and it dies, it will count as a kill. When you get to the Entrance of the Underground with the Rookie, and go in to find Dare, the achievement should unlock if you haven't killed any Engineers in the city at night.