Back in my day we did not have all these distractions at college, no TVs, maybe a record player, maybe a typewriter to borrow, no computers, no gizmos, microwaves, UTubes, Ytubes or GlueTubes. All we had were women and beer ... and Helga!
Hit the books (or screen or tablet or whatever they do now).
And yes I did walk miles through snow to get to class with holes in my shoes.
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DID, no cheats, no shortcuts, no non-historic equipment deviations. Boat and crew safety is integral with my immersion style! Follow the historic events during your patrol:
http://www.uboat.net/today.html