(full credit of the part below goes to sirkoj)
Aquire the machine gun, aquire all workers as coin collectors except one, who you will equip with a machine gun. Max out all appropriate stats, hold down fire, drag the mouse off screen, click again (this should make your gun auto firing) place mouse cursor back over the coinbox (don't click), sit back and relax. ENJOY :)
then after doing that tab out open a dif browser (after muting the game of course) and watch some youtube.
If ten recruiters and eleven soldiers came into your camp asking you to join them in their 50 block compound with plenty of food and shelter, power, and atleast ten litters of stray kittens they found running around and cheering everyone up wouldnt you go with them? I know i would. But apparently someone in a park without much food and was surrounded by zombies said no and killed one of my soldiers. erm wtf? XD
two people infected... aaaaand the country i started in is already handing out masks, water, and closed down the airports, docks, and transit. imposible much?
im using a mac and i always play in full screen but i always have sound.... hmm.... how wierd because in the instructions it says that sound in ful screen on mac is glitched....
a fun game but it isnt as chalenging as most would like... i have been playing for about thirty minutes now and i have everything and i only died once and that was going afk...
 "Coinbox Hero"){kind=icon}
 "Rebuild"){kind=icon}
 "Pandemic 2"){kind=icon}
 "Balloon in a Wasteland"){kind=icon}
 "Astrox"){kind=icon}
 "Verdun"){kind=icon}
 "Pixel Pirates"){kind=icon}
 "Kids Vs. Ice Cream"){kind=icon}
 "Contract Wars"){kind=icon}
 "Zombies Ate My Motherland"){kind=icon}
 "Braking Required"){kind=icon}
 "Idle Mine"){kind=icon}
 "N (Official Web Version)"){kind=icon}
 "Rebuild 2"){kind=icon}
 "Earn to Die"){kind=icon}
thanx :)