Quarantine De-Sync

Hi there,

I’m playing with my brother over Xbox Live the Co-op Campaign for all of Halo MCC and we’ve hit a de-sync issue every time we play the Quarantine map in Halo 2. It’s extremely frustrating because even though we can complete it solo it doesn’t mean we will have completed the whole campaign as Co-op. I’ve seen similar posts around this but no solution.

Do you have a fix or are you going to bring one out? if so any ETA?