Expansion #2 - Western United States & Germany

Each map introduces not only a unique layout, but new rules.

Western US:
- Special rules involving transcontinental networks
- Towns start with goods cubes that can be lost if the town is urbanized
- new terrain: swamps

Germany:
- Berlin always receives a cube during production
- Some hexes have very high costs so:
- the engineer halves the cost of one piece of track rather than it's usual effect
- Some zero length links