Night Too Dark

Hi I appreciate realism but I cannot discern any shapes at all at night. Takes some of the fun out of it. I searched on this forum but couldn't find anything useful so far.

It does mention not selecting 16KM for one item(sorry I can't remember the title for this option) but I don't seem to have that option. I am using GWX3 GOLD and SH3 Commander.

I might as well ask one more question while I'm at it... is it possible to change the realism settings during a career? I can't locate the realism section again. I'm at 78% and I have a feeling the escorts are going to massacre me.

As I recall they are very adept at finding subs. or is there a setting that makes the U-Boat a little more difficult to find? LIke maybe an .INI file?

Thanks