150205-N-TC720-584 MEDITERRANEAN SEA Ensign Nicolas DiVerde fires an M240 machine gun while Chief Gunner's Mate Jacob Hunter assists during a live-fire exercise aboard USS Cole Feb. 5, 2015. Cole, an Arleigh Burke-class guided-missile destroyer, home-ported in Norfolk, is conducting naval operations in the U.S. 6th Fleet area of operations in support of U.S. national security interests in Europe.