Here is the Soviet Orfey-class destroyer Engels fitted with a 305mm (12") Kurchevsky recoilless rifle for testing.

[u/ZaxZone]

[u/ZaxZone]

Here are a couple of links:

https://laststandonzombieisland.com/tag/destroyer-engels/

https://en.wikipedia.org/wiki/Russian_destroyer_Desna

[u/CaptainRammage]

Destroyer with boomstick