Available mirrors (this is being updated frequently):

MD5 Checksum: 2430B6F50422CBFA4C13C13A01620AAA

US HTTP: http://download.maverickservers.com//ut3/UDKInstall-RenegadeX.exe
US HTTP: http://downloads.aruarose.com/misc/UDKInstall-RenegadeX.exe
US HTTP: http://www.mlwgames.com/ajax/?do=download_renegadex&server=2
US HTTP: http://www.mlwgames.com/ajax/?do=download_renegadex&server=6
US HTTP: http://den1mirror.renegade-x.com/renx/UDKInstall-RenegadeX.exe

GameFront (multiple parts): http://www.gamefront.com/files/user/T2xlc (Unverified)
GameFront (multiple parts): http://www.gamefront.com/files/user/T2xlcmirror1 (Unverified)

Torrent: http://renxgame.com/downloads/Renegade%20X%20-%20Operation%20Black%20Dawn.torrent Please keep seeding this! ;-)

EU HTTP: http://www.chip.de/downloads/Command-and-Conquer-Renegade-X-Black-Dawn_54218235.html (German website)

EU & US HTTP: http://www.playerattack.com/file/15495/Renegade-X-Black-Dawn-Full-Game-Client/

IndieDB.com (2 Parts): http://www.indiedb.com/games/renegade-x/downloads

AUS HTTP: http://www.ausgamers.com/files/details/html/63114

Usenet: http://renxgame.com/downloads/UDKInstall-RenegadeX.nzb

FilePlanet.com: http://www.fileplanet.com/224572/220000/fileinfo/Unreal-Tournament-3---Renegade-X:-Black-Dawn-1.0-Preview-Client

Renegade-X.com: http://www.renegade-x.com/UDKInstall-RenegadeX.exe