Rules of Engagement in 1939?

[siber]

Hi all.

A question regarding the hundreds of radio transmissions received on the first patrol of 1939:

BdU keeps telling me to observe London treaty and Prize rules and the like, and not to sink passenger ships. Then they say you have to stop ships with your gun and inspect their papers (!!!)

Is this all eye-candy, or does it impact upon your career? I mean, if you're told 'don't attack passenger vessels, can you attack Passenger/Cargo ships? How am I to know what's in the boxes on the fore-deck? Cabbages, or rifles? If it's eye-candy, surely then it's just a question of sink-'em-all-and-hang-the-consequences!

Especially difficult in a Type II when you've only got a 20mm flak gun and also have trouble outrunning asthmatic snails.

If these mission orders do impact upon your career, do they then carry over to the next misson, and the next until they're recinded or superceded?