Help

[stringy]

Just a couple of questions. I am doing my very first patrol in SH3 using the excellent tonnage war mod and trying to do everything the hard realistic way. i have been assigned a patrol area just off the Norwegian coast. Should I be attacking Norwegian merchants as they are not mentioned as neutral ships in the message reports. This is Sept 39 and I think Norway was invaded in the following year.
Secondly I have read somewhere here that you can get bearing and range reports from the watch officer to calculate the speed of the target. I can only get bearing but no range. I have read that the stadimeter is not that accurate.

Any help much appreciated