Quick questions:
1. I know i should build Gatling Guns, but should i also buy other buildings? Which buildings?
2. Should i just upgrade the Gatling Guns instead of buyingother buildings?
3. Is it worth it to have Security Centers and Sniper Dens? What buildings are good at higher levels?
4. Should i build and level up Abandoned buildings since they are cheap?
Yes i have looked at the Wiki and the spreadsheets, but there is little information on what buildings provide what defense past the Abandoned buildings and guard towers.