North America: Itís 50% cheaper to build aircraft and aircraft weapons.
Europe: Build cost and maintenance on labs and workshops is 50% less.
Asia: Foundry and Officer training is 50% cheaper.
South America: Autopsies and interrogations take no time.
Africa: Monthly funding is increased by 25%.
Considering you can only have one skyranger, and most of the meat of the game is research, building equipment, and tactical missions, what on earth would be the point of a N. American base other than to make the game harder for you ??