You need to be the clan leader and a premium member to be enlisted in clan ops.
Once you have both you can level up your clan by going to the COMPETE section and picking the available clan ops.
As if it even matters with all the boosting going on with the clan ops and lone wolf ops. I'll have to check if it is still on my threater but during the domination one yesterday I had some fun not boosting with the ***** and running around just shootin them up while nobody else shot anyone so they could take turns capturing spots
SOMETHING REALLY NEEDS TO BE DONE ABOUT CHEATING OF ANY KIND AND i DON'T MEAN REPORT THEM ISN'T THERE SOMEONE OUT THERE WHO JUST BUST CHEATERS BUT REALLY NEED TO THINK ABOUT ADOPTING THE MAX PAYNE 3 MOTTO AND JUST LET THE CHEATERS PLAY AGAINST EACHOTHER IN THEIR OWN LOBBY