You can D/L GWX as a single file from either Gameshadow
or
at http://www.jeuxdeguerre.com/index.php?p=4&file_id=977&t=44
The AI subs were available in GW - probably UWAC too and NYGM
Its how you script them thats needed
You will have to manually add them to your campaign files for them to be anything other than eye candy in ports