Right now, when a player set a marker on a map, this marker is yellow to him, but - grey-blue to other players. When other players place more markers they are also grey-blue.
My proposition is to give a separate marker for every player - blue for player 1, green for player 2, red for player 3… white for player 10.
This way players will have the ability to communicate on chat - “enemy tank red marker” / “enemy rally green marker” / “enemies white marker” and so on - when they cannot place exact marker.
When my own group marks we have to double mark, if grouped players could see different colour I would be able to know where trustworthy marks are being put without doubles having to be used.