So, hunting and killing enemy subs when using USA platforms is quite easy. Using them is another matter.
In a standalone mission called "Duelists", my three subs of Norwegian and British make, did nothing more than attract enemy torpedoes. No matter how slow I moved, how deep or inside the Zone I traveled, made absolute certain my sonars were not active, I couldn't get close enough to enemy surface ships without dying. I ran through the tutorials twice over, earned high scores on all of them; still can't operate subs effectively in a real scenario.
So, is there a trick that I'm unaware of? Or are subs basically luck? I'm no naval commander, more into land warfare (Steel Beasts Pro PE, Arma3). Not using that as an excuse (actually I am), but I'm fed up with my expensive Improved LA-class subs littering the ocean floors with their hulks.
"No Sir, I don't think that's a good idea at all." -last words from unnamed NCO before falling into an enemy ambush.