A) Is not Rat Patrol. It was a one hour war show, that took place in the European Theater in WWII. It was a platoon of infantry and the main characters were an officer, and NCO of the platoon. Combat
B) Was a short lived series made from a successful movie based upon a true occurrence in the Pacific Theater, that involved the Army and the Navy and some coast watchers. Tough one. Leaning towards Baa Baa Blacksheep, or Mchales Navy.
C) Was the most timely of the shows, all about The Eighth Army Air Corp, and daylight bombardment pre D-Day in WWII. 12 o clock high
D) You already know, which was also based (loosely) on a real story.