Reclaimer Campaign Glitch

I’m trying to complete the Halo 4 playlists but whenever I play the mission Reclaimer, the litch doesn’t explode. Worse, when the mammoth starts moving again the entire level turns invisible and I can’t play the rest of the level…

I remrmber encountering this glitch a few years ago, does anyone know a possible workaround? Ive tried restarting the level multiple times to no avail.

I think the trick is to not go through the level too fast. Kinda sucks if you’re speedrunning though, but I think there are workarounds.