On every Plane there are times when one's prestige in arcana or faith in the gods are not enough to save men and women on the battlefield, as mages may run out of spells or clergy may lose their blessings. Sometimes one has to rely on their own skills to survive and to save the lives of others, hence the formation of Combat Medics. That is not to say that Combat Medics are men and women without magic or faith; but rather they are those who are extensively and expertly trained as physicians in practical, if not alchemical, medicine. Thus, they do not need to use magic of any sort to save a life in the field. They are but Soldiers, Sailors, Marines, and Mercenaries outfitted with not only their arms but with the knowledge and means to save the lives of their comrades in the worst of situations.
Use the tables for either the Soldier, Sailor, Marine, or Mercenary backgrounds as the basis for your traits and motivations, modifying the entries when appropriate to suit your identity. Your bond could be associated with the company you traveled with, or a ship you sailed on previously, or with some of the comrades you served with. The ideal you embrace largely depends on your worldview and your motivation for being a Combat Medic as oppose to being just an average combatant in a company or on a ship with the rest of your comrades. Finally, your flaw depends on your traumas and tribulations you developed while serving in a company or on a ship in battle or a war.