Since 1.5.0, crossfire 'bigworld' maps are available. It contain
the new map distribution - this has a much larger oudoor world -
eventually these will be the default mapset.

crossfire-<version>-maps-big.tar.gz is the new map distribution,
while crossfire-<version>-maps-small.tar.gz corresponds to the
map distribution before crossfire 1.5.0.

Note that if your server was previous using the smaller map set,
you will need to use various scripts included in Info/ to update
unique maps and other exits. See the Info/README file.