Just noticed this post.Luftflotte2 wrote:Below that is a Japanese submarine with a Flak gun. (This is labeled as France 1943 if that is possible).
I think you mean I-8
http://www.combinedfleet.com/I-8.htm
IIRC, she was armed with German 37-mm. Flak (besides the radar mentioned in the link I gave). And she was the only Japanese sub (excluding U-511) to successfully return home after "journey" to France.
Best regards, Aleks