Shipwrecks?

[YoYo]

Hi,
I noticed two kind icons of shipwrecks on the 2D map.
With red title (and white small dot) and black. Any idea why?

Example:

http://s5.ifotos.pl/img/Nowy-1JPG_qpppnqx.jpg

[max-peck]

I noticed that - don't know for sure

Is it possible the ones with the white dot are the ones still putting out a sound signature - thus still liable to attract a homing torpedo?

Just a thought :hmmm:

[Wiz33]

Wild guess. Destroyed but still afloat and on the bottom?

[PL_Harpoon]

The colour depends on whether you have a sonar contact with a wreck or not.