It’s possible that the Replay Mode just leaked the crashed rocked map changes for the weekend update or Week 10.
Just this week, the rocket in the villain base got prepared with extra rockets and gives off a loud siren noise. Also this being the last week before the season finale, it would make sense to start the rocket and see the impact of the rocket starting in the next season 5.
If you go into replay mode and fly to Anarchy Acres in drone free mode, you can see some rocks next to a shed. Let the gameplay roll until they disappear and then rewind once or twice. This should make the “leaked” rocket part appear.
Deal damage with Explosive Weapons to opponents (0/500)
Search Chests in Moisty Mire (0/7)
Use a Shopping Cart (0/1)
Visit the centre of Named locations in a single match (0/4)
Follow the treasure map found in Haunted Hills – HARD (0/1)
Shotgun Eliminations – HARD (0/4)
Eliminate opponents in Anarchy Acres – HARD (0/3)