SECTOR

 The following are possible sector types:
    A - Artillery industry
    C - Capitol (Only one per island)
    D - Dock
    E - Explosives industry
    F - Fort
    M - Mine
    P - Plane industry
    R - Rural
    T - Trade center
    U - Urban area
    W - Water way
    ( - Radar installation
    + - Airport
    ^ - Mountain Sector can not be designated
        but can be populated and cost 5 movement
        points.
      - A blank space is configured water and 
        can not be designated but can be mined.
    * - A water sector that has been mined.
        Mining only works within the island water
        sectors, not at sea.