These maps may seem a bit old-school by today's standards, and half of the maps may not be generally used, but the pack is monumental. The good maps are (still) among the best I've ever played, and the pack is (deservingly) canon for multiplayer.
Double Aught's classic netmap pack hasn't been changed at all, except that I've made it into "Unimap" format and zipped the file, making it easier for more modern operating systems to use.
NOTE that the version you can download from Simplici7y will not work with old films recorded forever ago in the good old days. These sure as hell aren't the good old days. If you're trying to view an old film and Aleph One complains that it can't find the map file, get the original file here.