Stay alive with Merle Briggs until you are extracted by the Resistance.
- Turn back toward the bridge.
- You now need to hold out against a number of waves of Cultist Soldiers that will be coming after you.
- You only need to hold out for 2 minutes and you have access to the Mortar that has a lot
- Only a few come in the first wave, and you can eliminate most of them by throwing a Proximity Explosive onto the bridge.
- 1 of that wave will run into the ravine and attempt to ambush you from below.
- Use the Mortar moderately to spot and bomb incoming groups.
- Some well placed remote or proximity explosives can also go a long way to hold your ground.
- Aim well ahead of where the Cultists are going because of the long load animation to fire the mortar.
- Get to the end of the duration and you are done.