Mammoth crash

On the mission requiem where you’re riding on the mammoth there is a huge section of the map that is missing and you fall to your death after the mammoth despawns it’s right as Cortana and chief are hopping off to continue on foot (when Cortana is talking about rampancy) I’ve tried uninstalling and reinstalling the game but the ground is still missing

That’s been a known glitch since the original Halo 4 back in 2012. What causes it (if I remember correctly) is the Lich not blowing up from the previous firefight section, which then triggers the next loading zone while you’re riding on the Mammoth. Try simply restarting the mission and make sure the Lich blows up once you reach that part.

Thanks I’ll try that