Welcome to the best game & forum ever!!
When I first start a career, I always patrol my grid as there is a renown boost awarded aswell as a boost for retuning to base. However, once I have enough renown and the boat I want I just head to my favorite hunting grounds and sink as much as possible.
One thing to remember is, in foul weather you can hear further than you can see. North of Ireland AM 52/53 is always a good spot.
Happy Hunting & enjoy the wonder that is Grey Wolves
