Test of Faith is the achievement for completing the game without shooting anybody.
I completed the game and was careful not to shoot anyone, but did not get the achievement. So I was wondering if I could go back and play a chapter where I might have shot someone and still get the achievement?
The only time I fired a gun aside from the time that you have to shoot the caravan, was when I was fighting two guys at once, disarmed the first one and went to attack the other one in melee but my attempt to drop the weapon I took from the first one didn't work, so I ended up shooting him. I then let him kill me (the shot didn't kill him) so I hoped it wouldn't save that.
So I was hoping I could go back and just replay that chapter and get the achievement... but that didn't work either.
So basically I think the answer to my question is no, you have to play straight through it without ever shooting anybody, but I thought I'd put it out there and see if anybody knows any different.