Secondly,when attacking a foe, if your blow actually connects, the result of the blow should change depending on the weapon that is being used. For instance, if the player is using a mace, hammer, or blunted flail, the blow should do damage that more or less breaks the opponents bones. A sword or axe would just slice muscle and make it harder to move the limb in that way. Spears are obviously a weapon used for stabbing so that kind of explains itself as well as arrows, and halberds can either be used as a spear or as an extended axe.
Lastly, the fight should change throughout. If someone takes a blow, it should instantly alter the battle. By this I mean that the opponent should stagger backward a bit to recover from it and make it slightly harder to move that limb every time the limb is hit. But the most important part of this is adrenaline. If someone has taken enough blow the person will, undoubtedly, get angry and start to swing with more force than usual, making them harder to block. I know that this somewhat contradicts itself by moving slower than faster, but if you think about it, that's how it is in real life. And just like in real life, if you can overcome the opponents adrenaline even for a few seconds, the opponent starts to know that he is going to be beat, and basically fights back very slowly, or begs for mercy....Karma anyone...
These are just a few ideas that I thought of. Feel free to add to these, tell me why they won't work, or if you feel these are good ideas and should be added. Once again, just a few ideas.