u/Cautious_History1599

When I try to play COD with my brother I keep getting the “Upgrade to full game” for zombies, multiplayer, and even campaign. The only thing I can play is the “Endgame” game mode. I have tried contacting support but they tell me to reach out to Activision. However for their support page does not offer the option for something like this. I have reached out to Xbox concerning this and have done all the trouble shooting steps. Like verifying the correct account is synced with the Activision account. I have verified my subscription status. I have reinstalled it multiple times. Just what in the hell is going on?