So, the other day, I had re-discovered a used copy of Kenson's "Born To Run" I'd gotten a while back from a used book store but didn't read. I had gotten to the part where the protagonist shoots a shaman in the back of a truck and then feels slightly bad about it afterwards. It got me thinking about all the SR3 games I used to be involved with where one or more player characters was supposedly a pacifist of some kind, and would be stuffed to the gills with tasers and gel rounds and bo staffs, and would typically be just as combat effective as the non-pacifists, if not more so.
That's surely not realistic, but there were a few key reasons for this:
*Physical damage goes away faster than stun damage for all intents and purposes since it's possible to repair it during the course of a run using magic or a medkit.
*Impact armor is usually lower than Ballistic, but at the same time it's usually possible to create Stun-generating attacks that have really high Power ratings, so the net effect is lower armor ratings used to resist Stun.
*Stun damage hampers you just as much as Physical damage does.
*Once you've taken a Deadly stun, you're out for a long, long time. As far as tactical scenarios go, it's pretty much exactly the same as if you had a Deadly physical wound. Compare this to reality where if some boxer beat the poo out of you and knocked you out, you might only be out for a few seconds or a few minutes.
Thinking about it further, if you were to try and implement more "realistic" rules for people getting tased, beat up, and shot with less-lethal rounds, there would be a number of additional things you'd have to consider, all of which would harm the efficacy of less-lethal attacks:
*Probably, ballistic armor should help more than it does against lots of non-lethal attacks. I would think that realistically a level 4 vest with a ceramic plate would pretty much stop any taser cold, since the hooks would need to penetrate to have an effect.
*Less lethal attacks' effectiveness would probably drop off much more sharply if the attack was not perfectly placed. For example if you fired a taser at someone but the hooks landed in his left arm instead of center mass you wouldn't expect the person being hit to be incapacitated. If you punched someone hard in the shoulder instead of in the nose, the effect of your punch would be tremendously diminished.
*Less lethal attacks would have a certain chance of simply not working as expected even if perfectly delivered. If an expert boxer punched you in the nose, you wouldn't be totally surprised if one day when he did that he knocked you out, and another day he didn't, just because of small variables in body position, mental preparedness, and physical health. It wouldn't really be possible to predict ahead of time whether, upon putting some pepper spray in someone's face, whether he would be blinded, blinded and "stopped", or unaffected for all intents and purposes. On the other hand if someone shot you in the face with a small handgun, your not being incapacitated would be the astronomically small exception to the rule.
*Less lethal attacks can move slowly. A bullet flies faster than taser hooks. Who would show up to a wild west style cowboy quick draw duel with a taser in his holster?
*Finally, lethal weapons should probably also cause Stun when they do hit. For example if I bash you over the head with a longsword, there is clearly going to be lethal damage in terms of cutting and possible fracturing or cracking of your skull. That being said there is ALSO going to be blunt trauma and brusing, just like if I bashed you over the head with a night stick, which under SR rules is considered Stun damage. Likewise if I shoot you in the vest with a rifle, we would expect bruising to occur which would be similar to bruising caused by a good punch or kick.
So the bottom line is that weaponry that is truly less-lethal basically should be less reliable in terms of putting people down than lethal weaponry. That would be more realistic and it would also make running around with less lethal munitions more of a meaningful role playing choice than if Stun damage is uber.
Also, stuff that causes physical damage should also cause stun damage if it involves any significant amount of kinetic energy.