Just an idea that creeped up on me. How about visible body damage during combat that lasts beyond combat and requires healing treatment to clear up (a purpose for medics and doctors right there!)

Example: Player A engages Player B
Player A strikes Player B across the forehead with a Knife
Player B produces a deep cut across the Skin on his Forehead
Player B proceeds to intensely beat Player A with a Bat in various places across their Body.
Player A develops heavy bruising in the affected areas.
Player A proceeds to jab a Knife into the shoulder blade of Player B
Player B sustains a gaping wound in the affected area.
Player B deals a heavy blow to Player A's leg with the Bat.
Player A suffers a Leg Fracture and throws a rock at Player B, knocking them out.
Player A flees the area with a gimpy leg, their mobility hindered whilst Player B is unconscious.
Player B has a Black Screen.
Player A visits a Medic who applies a Splint and Bandaging to the Leg. The Leg will heal after a certain time, the bruising will fade after a couple of hours.

I'm a bit too gorey arent i .
Ideas welcome folks.