The HarryHomers campaign and maps are packed with WinZip, so they need unpacking.
When they are downloaded and unpacked they should be copied / saved in to
the Wolfenstein - Enemy Territory/etmain directory.

When the campaigns and maps are all unpacked the file names must end in .pk3 and NOT .zip
If they are left as .zip Enemy Territory will not see them and you will not be able to use them.
Also when any new maps or campaigns are copied in the Wolfenstein - Enemy Territory/etmain directory, the game must be restarted for them to become available in game.

The maps that are currently in use on the HarryHomers server can be downloaded from   here.

The campaigns that are currently in use on the HarryHomers server can be downloaded from   here.

The HarryHomers campaigns are all named along the same lines for easy identification, for exmaple hh*****map*.pk3 would become hhrocketmap1.pk3 or hhbatterymap2.pk3