I'm not a very experienced player, but I know when to push, when to retreat; I need an honest opinion on what you think of subs. Most battleships are sluggish enough that there isn't much to do when a sub launces a torp attack at less than 3 km, there's only so much you can do with the damage consumable; you'll be mitigating the torpedo impact and less than a minute later, bang, another set of torpedos coming straight at you. Ships like the Bismarck, Tirpitz and NC, have low torpedo protection and will instantly lose over 35k health, (have happened to me, unfortunately. tried to angle, no good; torps are stubborn to hit my sides) and you'll lose the rest with flooding and fire, because the sub is giving away your protection constantly. Also, killing a sub doesn't have half the satisfaction of blowing up a, say, a CV or a cruiser who had been long pestering you.
I play the mighty (to me) Tirpitz, and I'd like to have a feedback of much experienced, much skilled commanders out there regarding subs.
Good luck and fair seas!