Great idea for a post matey

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As for how i go about a patrol, it generally goes along these lines:
- Leave port
- Plot course to assigned patrol grid, via known traffic routes.(This is done in stages, so if I come across a convoy/ship I can leave my plotted course, and pick it up after sinking ships.)
- Stay surfaced for as long a possible. (this changes depending on what year it is/aircover/weather)
- When reach patrol grid, I patrol in a zig-zag pattern for at least 48hrs.
- Once done, head home again via known shipping routes, in the hope of sinking more ships
Hope this helps.