Re: Modern Republic Then when you get around 4.2 millions, sell your barracks or stables and replace it with a tier 2 building that you upgrade to lv 2 right away. Upgrade it to lv 3 when you can afford it and keep doin that until you don't have any tier 1 buildings left. Then you can start to buy land again.
Re: Modern Republic No they can't. You'll be to weak until your spies have regenerated a bit. The same goes for regular soldiers.