Repel the assault is an objective in the Story Mission, The Dawn of New Pandora in Borderlands 2: Commander Lilith and the Fight For Sanctuary
- Traveling to the Fight for Sanctuary will bring you to the Crimson Raiders HQ.
- Go through either door after having accepted the disclaimer (this is post main game content).
- Head to the South out of the map room, jumping into the main plaza of Sanctuary.
- In the New Pandora Pyro, New Pandora Scout, New Pandora Recruit and Invader Ship
- Fight on through the new army moving in.
- If possible, use Corrosive Weapons to quickly destroy the Invader Ships that are above.
- Defeat all of the foes here to be taken to the next destination: The Backburner.