What seems to be the problem? The current file that you have downloaded from the main ESFORCES website is kind of bugged due the folder starts with "TMP" in the zip/rar. Which has been zipped wrongly, lol. In TMP folder, those are the files that you need.
Simple make sure that you extract the *.wad file(s), models folder, the maps folder in the zip/rar to your ESF folder / directory. Just extract all the files to "steam/steamapps/yourname/game/ESF/", if i am correct.. you should see a folder called "TMP". Simple go there, and copy all those files to the main ESF folder.