Supply crawler

Supply crawler is one of the in Alpha Centauri.

Description
Supply Crawlers are useful for transporting resources. Supply Crawlers may:
 * Produce nutrients, minerals, or energy from any square on the map and send the resources to its home base. Select the "Convoy" ('O') option on the Action Menu.
 * Disband themselves in a friendly base to yield their full mineral value towards the construction of a secret project or unit prototype.