Displaying fiendish delight in blowing up innocent fishers is no cause for concern, it is war after all.
I use to run like hell from the PT boats when I first started playing until once I messed up my dive and decided to shoot it out. The flak guns and/or cannons do a nice job but a good hit with the eighty-eight remains the best. Never imagined how much fun I had been missing. Fun yes, but efficient... no. There are three targets that should attract your missiles young Kaleun, tankers, tankers and tankers. Flying fishing boats may be a nice distraction from long, lonely patrols, but they don't buy equipment upgrades and new boats. Also the armament department wishes me to remind you that eels are 25,000 Marks a piece.