The only thing honorable in for honor is not attacking in duel when the other is giving You his back. And thats is because in theory they are in need of a moment, and You also maybe need one eventually.
Attempting to force a honor code to anyone in a Game is fruitless. If the game allows a cheap way to win , many players will do it.
Sometimes I play without analyzing my oponent and lose or my reactions sucked and failed miserably, sometimes is lag, I avoid cheap tricks for me not the others , the others can or can't be in agree with what I find honourable, so sometimes I lose to cheap tactics and is fine ...but understand that traditional "honor" is dead in for honor
The honor in For honor is killing more than the others, the honor of being the Best. this is how the game functions in reality. Any attempt of a moral code Will fail.