[leovampire]

for the Ships and Plane's control what they can see when and where around them.
Graffic's has nothing to do with it that is just for us as players.

For instance the sensors are set up where it is hard for planes to see us at night so they dont fly at night anymore and in high sea's it is hard for them to spot the wake so they don't always see you and that is also controled in the visual sensors node's. There are also settings that stop them from seeing to far away in thefog state's. As long as the game register's these conditions they can not spot you.

I think so many people wanted the scope's spoted by ships the Dev's did it in patch 1.3 it is just a little too sensitive and can be seen too far away in any condition from 0 mps wind's to almost 8 mps wind's and wave state's.