Unzip/Unrar the content into your Vietcong 2 profiles directory:
"x:\Program Files\Vietcong2\profiles\"
Start the game, load up the PiZZADOX profile and you will have access
to all missions.
/Team PiZZADOX
download the file: vietcong2uc.zip
(to unpack archives use: WinZip,WinAce, WinRar)