This is the Zoom Beta Version. It's actually just a map of Zoom. Enjoy!
This is my first portal 2 map It's still in beta. To install: download the file. It will appear in the downloads. Right click on the download and click 'open containing folder' copy the file to 'C:\Program Files\steam \steamapps\common\portal2 \portal2\maps\' It may be Program Files x86 like mine. Go into portal 2, (make sure in setting that you have the console on.) type 'map Zoom'