"Сгниют Акулы у причала"
As a former US Navy Missile Tech, I've seen and crawled around plenty of muzzle hatches. Those look like rusted crap, we would never let ours look like that. Submarine Qualified with SSBN Pin.
I too was shocked at the condition of the superstructure. I’ve noticed often the rust corrosion on Russian submarines. Never saw anything like this in he US fleet, that’s purely a lack of maintenance. A complete lack. RMC(SS) USN Ret.