After a group of Navy SEALs walked into an ambush near Fallujah, Iraq, their medic was the first one to go down.When a Navy SEAL tried to pull him to safety, he too was wounded. Jason Redman was next. He first was struck in the arm, an injury that he initially believed blew the limb off. His two injured comrades were now huddled behind a huge tractor tire, and a weakened Redman figured his best chance at survival was to join them.Also read: The …