@LordNicolas71I've stockpiled nearly 300K worth of CC and don't have this problem, so please take this with a grain of salt.
It will take a while but you will be able to earn CC from daily missions (some are admittedly more long winded than others now they've combined them with the CC assignments), ranking up and also by completing those nodes in the new weekly missions. It's just a case of grinding them out in my experience.
Edit: You also get them for completing the Co-Op missions the first time, for each difficulty. Might be worth doing them if you haven't already.
