Guide to winning on Nightmare
1. A school early is VITAL! You'll never amass the amount of soldiers required to win if you can't train them.
2. Two Police stations really early make a huge difference.
3. You need to leave a lot up to chance at this level and get lucky. When I won, it was because my 50 defense walls defended against a 270 strength horde twice, as well as very few deaths when I ran 20% fatality rate missions.
4. The Zed WILL overwhelm you. It is inevitable. The only way to win is to stop them from reaching the 400+ army state. At this point, resources are just too hit and miss.
5. Try for the Win-by-portal or Win-by-Gov't routes. The technology route requires too many personell to keep up, too much time to execute, and is just difficult.
6. Scavenge Early, until your food intake is positive
7. Throw in random, non-specialists in important missions. Death rate DOES NOT rise, and you get more ROI.
8. Happiness should hover around 10-15%.
9. HOSPITAL.
Rate up
For sequel: Master the individual city, then tak the city on to a larger map and try to save a bigger area (scaled up zombie threat, too) and then escalate a second and final time where you try to save the world. Also, an individual upgrade system would be nice. Joe Bob who has been a scavenger for all his life shouldn't wake up one day and be on par with Rambo.
 "You are a... The Sequel"){kind=icon}
 "Treadmillasaurus Rex"){kind=icon}
 "Rebuild"){kind=icon}