What about game setting? Where and in which time running single campaign? A saw some screenshots and it's looks like near future around Syrian deserts. I think it will be cool story: oil running out and humanity fights for best places for solar energy stations. Best places in arabic deserts.
It feels more like a winter in Taiga or something or even Arctic rather than Arabic deserts. But the oil thing you've told is very interesting to my mind. The one who wins gets the oil and food, yeah