Screenshots or no download.
I downloaded it anyway, and I saw too many folders, including custom content. You have to pack your content into the bsp by the means of VIDE (Valve Integrated Developer Environment) or Pakrat. Search them up on Google to find out how they work. As for sharing the vmf, only you know what you want with your map, so there's absolutely no reason to share the vmf 'so we can add a few more things'. It's also quite dangerous to share WIP maps with everybody, as I'm sure someone will come across this download and then continue on it as if it was his/her own. And there's absolutely nothing you can do about that.