There was for a while but then it got taken down. I got it back on CC about 3-4 months ago but after a month only 5 or so matches had been played. I would like to see it back again but activity would probably have to be higher on it.
XGC FREAKER XS dose a lot with CC, if you can I would get in touch with him, he probably knows more than I do about halo on CC.
I would certainly be keen to have it back though.