Why don't they do the same thing that Bohemia Interactive did for Arma 3? They bought a system of dynamic procedural clouds and it looks amazing, look at the screenshots of Arma 3!!
http://www.arma3.com/full/wp-content...t_1107_026.jpg
http://www.arma3.com/full/wp-content...e3_01_camp.jpg
http://www.arma3.com/full/wp-content...ot_1108_10.jpg
http://www.arma3.com/full/wp-content...t_1107_025.jpg
It isn't their system, they had to pay for it but it is worth it. Maddox can use several people to work on a new cloud system for a long time. And time costs money. In case of buying this cloud system, they would only spend money but not the time. So, it would logically be profitable! Who shares my opinion??