Nundu Bay (mission)

The mission start will have you in the middle of the encampment where you have to keep Elder Jonah alive. Attacks will alternate between the different entrances of the encampment. After killing 2 boss groups, a harbringer will charge in. Use the vial of water skill given by the Elder on the harbringer before attacking it as it wont take damage without it. After a while, it will stop taking damage so use the skill again. Be careful as these creatures can do massive damage and wipe out your party in seconds. An MM hero works good in this mission.

Keep killing the waves of normal enemies after this. After a while the second harbringer will charge in. Kill it. Then one last wave of enemies will come to you. Kill them. At this time, go out towards the fort and basically follow the story line.

To get the bonus, you have to kill two harbringers BUT not the harbringer of nightfall as that will end mission. This bit is tricky. Clear enemies from outside the fort. Then go to each different entrance and lure the harbringers out. Kill the enemies surrounding them while keeping at least one hero with rebirth way back just in case as harbringers do massive damage.

Bonus will be done once you kill these two harbringers. When done go to the main entrance and kill the harbringer of nightfall to end mission.