Balao with a new career in Jan 1944, no problem, you get a 5" .25cal deck gun. Start with the Test Career I have in September 1943, and have the same thing... I'll do more tests this evening for an upgrade during a career. If you start a new career in January 1944 WH4K, with a Balao, let me know if you do, or do not have a deck, and which end of the boat it is on.