>>5352
the problem which you will encounter if you make combat system realistic is that your injuries will exponentially diminish your fighting capability so you will have no room for mistake, one who scores first hit wins.
If you want to avoid that you have to use some more forgiving combat system which will not decrease your capabilities.
Probably most realistic idea would be single hit, kill but making it harder to score that single hit.

I think panicking enemies are not new idea many games have them but those enemies usually run to call reinforcements.
Duke 3d even had enemies that pretend to be dead then attack you.

>>5350
simulation emotions woud be interesting idea, but i wonder how one could to that effectively.

One way could be to take away control from the player when characters starts doing something by itself what is causing you problems or it can be like giving some advantages penalties in various physiological aspects like strength, health regeneration.