I started a thread about this very idea a little while ago-
https://www.mpgh.net/forum/568-call-d...albox-mw3.html
Since then, I have been in touch with sph4ck and we are working together on a private repository to get a version working.
He's also said the following about VAC::
and
I have a few ideas to help confuse VAC, as well as things to add to the hack, and we're both excited to be working on the project. As the newcomer, however, I will be leaving it completely up to him when he wants to release, and when he thinks its ready. currently its running, but pretty broken and far from complete.
Thanks for the interest, and stay tuned!