Afghanistan

Goal: Sparsely populated and murderous terrain.

Could railroads have turned it into a modern country?

You've got 25 years to try:

For Bronze, connect Kabul and Herat and haul 8 loads between them.

For Silver, also haul at least 100 loads of goods, and have a company value of 15 Million.

For Gold, in addition to the above you'll need a company value of 25 million and a personal net worth of 35 Million.

Author's Comments: Inspired by current events.