Creating box targets over game objects

Ok I would like to know how to create a 2D target box over another gameobject I have a space game and I love to know what I could use to create targeting boxes to keep track of other players. If anyone has played Eve online that is what im looking for when I mean targeting box

If I’ve understood your question correctly, the answer is to use either GUI.DrawTexture() or a GUITexture component to get the ‘targeting box’ graphic on screen. Your script will need to keep track of the 3D (world-space) position of the object you want the box to surround so it can either pass the correct position to GUI.DrawTexture(), or set the correct position on the GUITexture component.