Soldato
Trying to get through a playthrough on stealth only.. Does anyone know if using the Gas grenades goes against the pacifist achievement?
Cheers
edit - also, at what point does the achievement come into effect.
I killed a few enemies during the inistail Sarif industries attack.. Only switching to pacifist when given the option on the first chopper run.??
I think it's too late for me
edit 2 - yep
"This achievement starts from the first moment of the game, when Adam Jensen is not yet augmented; killing anyone in the Prologue chapter will lock out this achievement. "
Gas grenades only put people to sleep, so you can use them without losing the pacifist achievement. However, if one of them dies by falling into something deadly as a result, it counts as a kill.
And yeah, you need to get through the prologue chapter without killing anyone.