when i started playing the campaing there was a lot of fps lag i would run slow shoot slow and all the voices where off from the charicter whats is going on
Sorry for the delayed response.
We will try clearing the cache of the Xbox and see if that helps.
To perform a hard restart, hold the power button for 10 seconds while the system is on keep holding it and count to a slow 10 - 20 seconds. after that unplug the console from the power wait 10 seconds and plug back in and turn your xbox back on the console will do a cold reboot.
Let me know if that fixes the issue.