Cell-3 - Playing Call of Duty and Counter-Strike:Source. Includes map downloads, roster and forum. - http://c3ll.myfreewebs.net/html/
CruelsWorld - Includes forums, server information, roster, and movies available to download. - http://www.cruelsworld.co.uk
Crew-Nexus - Playing Enemy Territory and Counter Strike Source. Includes server info and details on their 5on5 league - http://www.crew-nexus.net/
Criminally Insane - Playing Delta Force 2 and Call of Duty. Includes roster, match results, forums and a Delta Force modification to download. - http://www.cisquad.com
The Church of Frag - Plays Unreal Tournament, Quake 3 and Ghost Recon. Includes members, contacts, forum, and links. - http://churchoffrag.org/
Cybersfr's Frag Zone - Playing Battlefield:Vietnam and Counter Strike:Source. Forum, news and calendar. Includes Maps and media files for download. - http://www.cybrsufr.net