Wire guidance is not possible before 1950. It has something to do with flexible light weight insulators and wire strength. The whale hull sub with the disappearing deck gun is actually historical for the USN and not only historical but decidedly so, since American design trends before they were sidelined by the German U-cruiser chimera was for the submerged torpedo ambush attack in the RTL with coast defense subs.
Deck gun shown here:
(US Navy recog chart)
Refer to Mister McKinley's Navy for the AU attack on Cadiz to see what this portends.
Last edited by Tobius on August 28th, 2017, 6:04 pm, edited 1 time in total.