i have it i got hold of the second ordmantell mission and combined the 2 into a clikinstaller .just download and save to desktop then install it. when in game load a save game then open the console the ' key and type open omt_01a.ctm hit enter and it wil switch to that map. the 2 maps will run consecutively. it was originally meant to be a 4 map mini campaign but somehow never got completed boohoo, heres vidlink....
http://www.youtube.com/watch?v=z9c0yp3Nxa4&feature=related)
You kan dload it from mi filefront...
http://www.filefront.com/14809357/ORD-MANTELL.exe/)