Buildings

Buildings in the City
 * Air traffic control
 * Barracks
 * Black Market
 * Casino
 * Distribution Center (only in your first city)
 * Embassy
 * Factory
 * Generals Quarters
 * Headquarters
 * Logistics Center
 * Perimeter
 * Petroleum Lab (only in your second city)
 * R&D Center (only in your first city)
 * Rally Point
 * Residence
 * Satellite Station
 * Supply Bunker
 * Tank Depot
 * University

Buildings in the Field

Your resources are produced in the field, you can see them by clicking the Field tab. The higher level your Headquaters, the more plots you receive to construct resource production buildings. General Orders
 * Farm
 * Oil Well
 * Quarry
 * Steel Mill

If you want to upgrade buildings from level 9 to level 10 then you need a General Orders, apart from for one Generals Orders it costs 100 cash which in real money is £6.40, or $10.00, so if your thinking about upgrading everything to level 10 then either think again or become rich ... quick.