This is not an official release. It is a fan-made repack, usually distributed via torrent sites or file-hosters like MediaFire, Google Drive, or Mega.
For gamers with slow internet connections, limited hard drive space, or older hardware, that file size is a nightmare. Enter the legend of the web: . Battlefield 3 Highly Compressed Pc Games 573 Mb
Here are some pros and cons of Battlefield 3 Highly Compressed PC Games 573 Mb: This is not an official release