I was wondering if there was some talented 3d modeler who wouldn't mind making a 5"/51 caliber deck gun model. My thought is perhaps one could start with a 4"/50 deck gun model, as a base, and adjust it's appearance to look like a 5/51.
Both RFB and TMO would benefit from this model, as both mods will eventually have this deck gun in game. TMO is currently using a 4/50 model as a substitute, im assuming RFB is using the same.
These guns were mounted on Tambor and Gar class submarines starting in july 1942 if source info is correct.
Some pictures:
http://www.navsource.org/archives/08/0819801.jpg
Tambor (SS-198) was fitted with a 5 in/51 gun. She is shown off San Francisco after a refit, 6 December 1943.
from:
http://www.navsource.org/archives/08/08198.htm
This looks like the same on the USS gar
http://www.navsource.org/archives/08/0820609.jpg
from:
http://www.navsource.org/archives/08/08206.htm
More pictures:
http://www.navweaps.com/Weapons/WNUS_5-51_mk7_pics.htm