Fantastic game, and fantastic that it acquired badges. For those of who are whining about "how shud we no were countrys r?", you should be INCREDIBLY ashamed of yourselves. LEARN.
If you're having trouble with the fifth challenge, try disabling the coal plant, building a natural gas plant/oil well and one research lab, three metal mines in the lower right corner, and a bunch of guns to partially defend them. The first night is the worst, because your smog will still be around 500, but if you survive (I had all three mines and a farm destroyed the first night) the next nights are much, much easier. Second night, your smog will be around 100, enemies will be easy as pie. Third night, ditto.
The last hard badge should not be an impossible. It takes about an hour of play after you get the first hard. Stop whining and do it, or play something else.
I am rarely one to make negative comments about a game, but this is absolute nonsense. Having to grind your way through all three races, not to mention it being NECESSARY to beat it with the Elves? Unless you read that in the comments, that's at least one 45-minute fight wasted to discover that little fact. Repetitive, mindless, repetitive, and repetitive.