1- Be a rich kid and waste all your money on the gamepass.
2- Pass an inspection as a SI.
3- Get noticed by a CAC+ doing good work.
4- Get it in a reform/promo wave.
4.1- Spend a million minutes in the game and get a free promo.
4.2- Get some leadership member to promote you and get a FREE PROMO because they liked you.
All the ways to get CP.