Two things weather related--naturally!

1) Enhanced sun/corona effect. The sundisk needs to be brighter and the corona wider and more intense. Currently, you can still easily track scouts flying in front of the sun. On a related note...

2) For cloudy (completely overcast) days, eliminate or at least reduce, the ability to see the sun disk through the clouds. I have had a modicum of success doing this myself and could implement this using JJJ's mission editor, but I am a pretty horrible artist and need someone more graphically inclined to make the effect look right.