The "give half of the point to every ennemy of the wounded in a 3m range" doesn't seem like a great idea :
-it favours leeching. People sticking close to good teammates, sometimes getting inbetween the swings (overhead bouncing off the teammate's shield, sideswings hitting the teammate instead of the ennemy, etc...)
-it favours clusterfucks and mindless charge ("damn, all the team seems to go in the open plains, even if we have a beautiful hill, range superiority, while they have cav superiority and we lack pikeman... Bah, let's stick to them, for the score." thinks 75% of the team, following 25% of mindless chargers)
-it's okay for cav, since the bump resulting in a death can happen before the cav hits the 3m mark (then again, with a courser, that's not so sure)
-it's terrible for range who can only count on themselves and the damage they deal to score points.
I know you wanted to reward the people who :
-blocked the ennemy, allowing a teammate to backstab him
-give a fearfull aura, causing panic (noooo, not Teeth, go away !)
-force you to block (pikeman, longspear, attack holders)
But what happens to the range that :
-shoot the ennemy just before he finishes his swing, wich would have killed you, saving your life
-shoot the ennemy just before he'd have blocked your swing, enabling you a free hit (sometimes kill)
-finish off that horse, making the coucher fall in a groupe of allies, before killing any of them, your teammates killing him easily, and ALL gaining points for "just being there", while the range contemplates his 2-4 points for finishing the horse.
What happens to the ninja :
-who takes a while to go all around all alone, to kill thoses 2 far away excellent range that were shooting hell on your troops.
What happens to the cav :
-who decide to risk his life and go after other cavs, on the other side of the battlefield. Sometimes killing two ennemies just before being dehorsed and abandonned.
Apart from thoses points, the system seems okay.