Sticky destroyers and map contacts updates?

[vdr1981]

Originally Posted by Demon777

While playing with Real Navigation and contacts update turned off, it seems that patrol vessels are able to determine the location of my sub. of course, its just my suspicion

silent run usually helps to avoid further chasing...

Thanks for the reply Deamon but that's unrelated to this thread.
Anyone else have any comment regarding my first post? To be honest I was expecting a bit more frequent discussion here...