Addition to other guides already up.
IMPORTANT GLITCH NOTICE: Sometimes when trying to "smother a Npc in bed, you instead pick them up and upon setting them down says they are deceased.
DO NOT PANIC! this is an odd glitch but it does not count as "Directly" Killing someone.
Also
Important: you can check if you have accidentally killed a npc by pressing the "select/double boxes" button on your controller and pressing RT to get to the notes tab, and scrolling all the way down (faster with d-pad) to STATISTICS, and check your TOTAL MURDERS. (Non lethal kills are fine)
you
NEED to go
ALL 3 chapters without killing anyone, non lethal weapons and takedowns are safe to use.
GENERAL RULE : SAVE ALOT! you can have multiple save files use them! also each chapters character has their own set of save files, so don't worry about "saving save files" (puns
) for the other chapters!
NOTES*** Spoiler - click to reveal ***Note 1: i used electric traps as well and they do not count as a lethal kill.
Note 2: RUN! RUN ALOT! RUN SOME MORE! SERIOUSLY RUN! running is your best weapon, the 2nd chapter and 3rd chapter characters have much less stamina then arthur but skills can be bought to enhance their stamina, also TEA (and certain other foods/drugs) greatly reduce stamina cool down and combined with phlash make a GREAT combination for any situation.
Note 3: BE COOL! never swing at an enemy if your not sure your weapon is NOT LETHAL.
Note 4: dying is not a big deal you can respawn (on most difficulties anyway)
Note 5: generally avoid fighting as much as possible, but if needed USE A NON LETHAL WEAPON, and check afterwards to make sure they are unconscious or deceased. as written above it also doesn't hurt to check your stats from time to time.
KEY RULE FISTS > anything except electric truncheon!whenever possible SNEAK and use takedowns!
if you get caught run and hide and wait. repeat!
its not as hard as it sounds and this game rewards exploration via secret paths/vents passed enemies.
PERSONALLY i ONLY used: (Spoilers)
*** Spoiler - click to reveal ***with arthur: Takedowns and Electric Truncheon (truncheon and truncheon blueprint found at reform club), Shock Grenades.
with sally: Atomizers (perfume bottle weapons like sleeptite atomizer or knockout atomizer), Knockout syringes for takedowns.
with ollie: FISTS (ollie is a brawler and his punches HIT HARD, especially punches to the head), Shock Grenades.
you can craft padded weapons but their not worth it. The Electric Truncheon is THE BEST non lethal weapon. at some point certain enemies carry them making it easy to keep a few on hand.