It's explained on the website. Just google "black ops 2 live stream" and look around.. There's information on how to do it and the minimum requirements, etc.
edit: Silly me, I forgot those results would be flooded with personal cod streams on twitch, etc..
https://elite.callofduty.com/elitetv/livestream/livestream_intro --- if activision were a physical entity, i'd wrap my hands around its neck and have an orgasm as i feel its pulse slow down" - mega boie715