After ten patrols spread over roughly two years, Obltn. z.S. Josef Schtuz and the gallant crew of U-47 have averaged 4 ships per patrol for a total of 280,149 tonnes of enemy shipping. Of this total, the tonnage can be broken down thus:
- 34 merchants for 225,219 tonnes
- 6 warships for 54,930 (33,000 of this was a battleship)
The crew will soon embark on their eleventh patrol and there's still almost 4 years and 7 months left in World War II, assuming we beat astronomical odds and survive to the end.
Definitely save your torpedoes for merchants, battleships, and aircraft carriers. Take out escorts if you must to get a clear attack on your target. Attacking and sinking escorts as primary targets is considered a waste of resources.