Basic route that can be used for Liberty or Bretonian companies.
Boron from Pittsburgh -> Thames
Mining Machinery from Thames -> Graves
Gold from Graves -> Ft. Bush
Consumer Goods from Ft. Bush -> Pittsburgh
Another basic route, for Kusari or Liberty companies
Boron from Pittsburgh -> Kyushu
Ship Hulls from Kyushu -> Yukawa
Crew from Yukawa -> Honshu
Optronics from Honshu -> Baltimore
Crew from Baltimore -> Pittsburgh