Hit the Insert key to zoom the map in until you are comfortable seeing it. I zoom in the map with the Insert key until the bases are clearly defined and I can see the icons for them, then I use the Z key to quick zoom in and out to check on plane icon positions.
The size of the plane icons now obscures the entire town icon on the map, they cant make them too much larger lol. Otherwise the map would have to take up the entire screen when you pull it up.