How do you get Battlefield 2 multiplayer maps into single player?

There is a download in which you can get 64 player size maps.

Here's the link.

http://www.fileplanet.com/156004/download/Battlefield-2---Single-Player-64-Maps-Mod

There are also websites, forums etc in which "hackers" have found ways in which you can get 64 player size maps. It is tricky though and it's probably a better idea if you download them but if you can't download you can try that.