Okay, so I'm playing as the EFEC, and I very badly want to siege Moscow. But all the missions I've been doing doesn't get me close. I only managed to conquer Sevastopol (the closest I could get to Moscow), after that the campaign basically switched me over to southeastern Europe and southern USA to repel JSF/RSGB attacks.
Is there a specific way for me to get to the gates of Moscow? Or is there a certain mechanic that decides the location(s) of your next mission? Any help would be appreciated. xD