Well as for my reason as to making it both a civi spec, and a Combat Spec, is because there is literally a field difference between Civi Medical training, and Combat Medical Training. Someone who hasn't had specific Combat Medical training isn't actually qualified or certified to work as combat medical, or even preform medical procedures on the move or in the field. Plus, the emphasis on being a medic is a key trait to several situation undisclosed within his biography.