Shchors

The blueprint on the historical gallery seems to be a different version of Project 28 or a different cruiser altogether.

https://www.secretprojects.co.uk/proxy.php?image=http%3A%2F%2Fi58.fastpic.ru%2Fbig%2F2015%2F0423%2Faa%2F1733037593a4cde87b9b6a628f372eaa.jpg&hash=0dc2276d392f5327cef2846dd6f0c65e

This seems to be the one that the in-game Shchors is based on. What do you guys think?