Yeah, I could see that. They would go to the islands, and to bases taken on another "continent", or whatever the hell you wana call it. But to be usefull as something other than a way to get perks and points, you would have to have it so the factories, and supply convoys are directly linked to how much ammo, or fuel, or troops, or whatever a base and a sector recive. If you destroy 90 percent of the troop training facilities, then you can only carry one troop in any vehicle. If you destroy 100 percent of ord factories, then the bases it supplies get no fuel. Convoys will still go, but carry nothing. And if you destroy a convoy, then the base it was going to gets no fuel or whatever the truck was carrying untill one makes it through.
I'm gona post a related topic.