Normally during WWII the B-25 carried four .50 cal. machine guns in two revolveing turrets and one in the nose. The Aircraft flown in the famous Doolittle raid had their lower turret removed. General James Doolittle, led a squadron of sixteen B-25'S on the first devastating raid on Tokyo from the USS Hornet Aircraft Carrier on April 18th, 1942. The crew consisted of 5 Airmen.