Originally Posted by Sailor Steve

I have opportunity set for 1, because before 1944 you're not going to be getting radio reports about single ships, period. Important contacts I set at 100, because I doubt they'd tell me about anything I can't possibly reach.

When I play German I have opportunity set for 100, because Condor scout bombers tried to keep them abreast of developments in their area, and I leave Important at 3500, because I figure you'll get a report on any convoy leaving port, whether it's in your area or not.

But, as always, that's just me.