Exactly how do you get this? I can’t shoot any engineers right? What if my A.I. Partners do? What point in the game do I do this until? The entire game? If anyone can answers these for me, it would be awesome. Thanks!
To get the achievement you kill no engineers while playing as Rookie the enire game. Rookie is alone without A.I. the entire game excluding the last mission. Run through the game on Easy to get the achievement fast.
Basically, if you see Engis in MOMBASSA STREETS ONLY (Other levels, blast away!), just avoid them. Avoid killing Brutes near them (As that causes them to blow up) but in the streets, you can just go anothe rroute anyway.
And you have to do the game from ‘Prepare to drop’ to ‘Coastal Highway’ to do it, a full campaign session.