TBH, Black (DD-666) is not new to us, but its stats have never been revealed by WG officially. Now, Black returns with a new build, and you should abandon your old knowledge and accept it as a new boat.

Hunter (Okhotnik) is a product of project 1917, its predecessor was a 1905 offshore patrol boat, but with fewer guns.

Podvoisky (Pronounced: Badvoisky) is a paper ship from Pr.1929. It will replace the Gveny and become the new Tier 5 destroyer in Soviet Destroyer branch.