Often loaded by the autoconfig.cfg file, this script creates the array "mapcycle" with the cycle of maps, separated by semicolons (;).
Here an example of loading a few maps:
It is noteworthy that maps here can be either PNG's (.png) or KAG (.kag) files. KAG map files will allow you to save entities and other 'happenings' not saveable by the png format.
For example, a Map cycle with two maps that are initialized in .kag files would look like this: