Albert Darago had never fired a bazooka before. He was an “ack-ack” guy, a fuse-cutter on a 90mm antiaircraft gun. But on Dec. 19, 1944, the brass was looking for volunteers to go after some German tanks. And Darago said sure. He was a 19-year-old, color-blind draftee, a native of Baltimore’s Little Italy and a musician who played piano and clarinet. He was no hero, he said. But when Adolf Hitler launched the massive attack that began World War II’s bloody Battle of the Bulge, he had not reckoned on GIs like Darago.