Hey, this looks great! Is there any chance of this model being exported to the US side of the game? This sub would be a good stand in for the US O-Class boats, some of which were used as Submarine School training boats, such as
USS O-10 (SS-71) instead of the Porpoise class subs used by the game. Pictures
here. The interior for the S-class subs could be used as a stand in, as they are similar enough.
Not a perfect match, but it would be a good stand in.
Edit: added pic.