Oddly enough I did put madagascar as my disease name, started in australia, but first country to get infected was madagascar, but greenland stopped me from winning.
If you make a character, and give him double sword or whatever, you have two swords, you can kill anyone really easily. Just dont stop swinging the blades. they can't stop it. Kind of lame.
Found a pretty serious glitch. Equip with a machine gun type weapon, and a shotgun. Not the sawed off but it may work. switch back and forth between the weapons really fast and shoot, eventually you'll get 100+ bullets with the shotgun, so you can just kill the zombies before they reach the screen.