"Still needs improvement. Bushes, trees and any other sort of nature placeable requires snow as well."
hmmm im gonna take a look into that one. Im guessing some extensive texture editing is required. Gonna start on it right away =)
And about getting the snow effect to work... Im not sure about the best way of getting it onto your map since the official tools seem to lack an appropriate options of weather delivery. I personaly took a bold approach and added the effect to a immobile creature/object. The actual effect has a transparency option wich would make that object invisible. If you know of a better way please post it here.