It's not so hard to follow a link to a download page and install a custom map. Sure an auto downloader would be more useful. But for now you gotta do it yourself. Do people find it too time consuming?
Sith Custom Unranked even has a page dedicated to the maps featured in its rotation with a preview image and link to download page for each one.
Here are the links on both sites:
http://www.gamesas.com/forums/viewtopic.php?f=40&t=33434
http://www.crymod.com/viewtopic.php?f=126&t=69457&p=809711#p809711
Would people like me to make a "SiTH Custom Map Pack 2.0" featuring all the current maps on the server for easy install? It'd still be the same process you download the zip folder containg all the zip files of each map then you'd still have to follow the instructions on each page to install each one individually. :/
C'mon guys get jumping on the custom maps bandwagon! Who's in?