For those of you finding the game hard, here's a tip.
Don't recon the dangerous areas until you've finished the game. The zombies from there are a pain in the *** when it comes to doing normal business in the game.
If you see a recon area that is near the edge of the level, then that's the area to recon the dangerous areas.
And by dangerous areas, I mean the areas that can't have factories or towers built there and if you go there you can survive against as many waves of zombies as you like.
At times, the zombies from the dangerous areas will attack the other areas you're trying to capture, so they can screw up the emancipated status of the other areas you've captured and then you have to do go kill zombies again which hinders your game completion progress..
