Greetings,
So I’ve completed Halo 3 on legendary in the MCC and in the site it shows that 2 missions are not completed. On the xbox in the missions menu all of them are on legendary. I have even replayed one of the missions again but no luck. Additionaly i have also completed Halo 5 on legendary but got no achievement, i have restarted, reset and still nothing. It shows that everything is completed here in the site but still nothing. Anyone have any idea what i might do?