Salvation's Edge 2nd encounter infinite time cheese 

Swap to loading zones few seconds after the timer hits to 0 and stay on that area for about the next 10s. If anyone dies on the area it gives that 5s wipe timer and it's joever. Then just go back to the encounter area and do the encounter normally without a timer. You still need to use correct symbols to close the monoliths and need one shape minimum to open the chest that starts the damage phase. Starting damage phase gives 20s to a timer but nothing happens when it hits 0s.
People who can't do the transition swap can join the fireteam after the blast is done to spawn in dead and wait to get revived.
On this video I skipped the blight phase and tried my luck with 50-50. Encounter still possible to solo if someone is goated gamer enough.