Russian war ships make beautiful target profiles in the periscope plus they have their subs around to hunt too. Lot of rigged for ultra quiet time. Fans turned down reactor pumps on low speed and ambient temps high and staying awake is a biotch on watch. H3ll of a way to make a living.
It should be pointed out that while the Russians have problems with some of their hardware being sub-par, we have an all pro-diversity navy that runs into civilian freighters and tankers repeatedly.
Including the formerly Silent Service. Keep that in mind.