Sonar range vs visual range

[commandosolo2009]

Originally Posted by kylania

In the campaign files patrol objectives are represented by a Map Zone. The ones early on near the east coast of England are around 70km in diameter and later in the Atlantic around 200-250km in diameter. There are triggers for these patrol objectives saying "If a ship is sunk in this map zone it counts".

So if you're in that map zone it'll count.

provided that shes merchant ship. DD/DE dont count..