I've encountered an enemy that is unkillable. I can damage him but then his health returns to full before I can do any more damage. I'm very early into the game, level 2 and just made it to Valewood. I've encountered an outlaw camp with a dwarf captive forced to do cooking for them. Two of the outlaws die pretty quick but the third one just refuses to die. Has anyone else had this problem? Seems like a bug to me.