guys if they make a rebulid 3 if you find a helicoper get fuel and fix it you should be able to move between citys and export and import surviors and resources
guys second level is easy just buy alot of miners then when a attack comes have your tower archer deal with them while your miners are safe inside then after you save alot of gold buy speartons a swordwraith then lauch the attack when you have three rows of soldiers
my fort went well had lots of food half the town captured lots of people and lots of guns ten items that weren't in use and all my survivers had weapons