Commodities of Martian Rails: Arms

Martian Rails, the new board game made by Mayfair Games about railroading on the Red Planet in which players build tracks and haul freight, has a long list of cool commodities that players can transport to generate revenue for their rail companies. For example:

Arms -- Mars was named after the Roman god of war. Blood red, it has lived up to its name. The various inhabitants of Mars have been in a state of war throughout its history. Certain tribes excel at weapon production and make a living by selling weapons of death to others.

Martian Rails is loaded with references to Mars and Martian SF!