Use the new dodge from Season 17, along with bombardiers, and as soon as the explosive from Bombadiers goes off near the payload, the payload just completely derails and clips through the environment, totally ignoring its predetermined path. Then the intro becomes unplayable and the debuff stacks continually and the fireteam dies over and over again, with the end door never opening. The payload derails 100% of the time while moving, but if it is still, some players see different version of it, and the current phase does not progress. Only solution is to not use Bombadiers.