In Multiplayer, if you enable on Difficulty Settings - Extended Map Contet - Mines = On.
It has an unwanted behaviour, if you put your mouse above the exact place where an enemy unit or vehicle is, the Map will give you the position and the name of the unit or vehicle at the exact place.
Can be used as an exploit.
Problem is that you can spot enemies in multiplyer by scrolling the mouse over the map untill it magically gives you a name on map.