I regularly shadow convoys, and hit them multiple times until all worthwhilel targets (T2s, T3s, troop trans, larger warships, C3s) are sunk. I've hit a convoy at least 3 times to this end. For each strike i maneuver in front of the convoy, submerge before radar contact, and move in silently behind the lead escort so I'm in the middle of the convoy. I then fire off all 4 front torpedoes (IXB) at the best targets, at minimum ranges, turn into the convoy 90 degrees, and fire the back two on injured targets. I then go down to 170m, silent running, and only reload torpedoes if water is choppy and sound detection poor. I let the convoy proceed while moving perpendicular to its course. If it is calm, and there are any crippled ships, then weather permitting i will surface and finish with the deckgun. This only works if the escorts have left and are >15km away. After that, I go to flank (without recharge) and get past the convoy while reloading externals and internals. I take my chances with air cover in this situation. Occasionally I have to dive to maintain hydrophone contact. Rinse repeat....
It's only early 43 though and I'm not sure how long this will hold out. So far I've never been DCed with any danger.
KB
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