I love this idea. I also think it could be interesting if Morale states could have an effect on it as well. As you move down to breaking the men are tired and barely holding it together, sloppily loading their charges which could lead to more misfires/longer load times because of dropping your rod/gun/cap. Honestly making the effects of Morale States more then just a "Oh okay we need to be more defensive now." Kind of deal would be very very cool.