Part 20

Slide down the waterfall. Pick up any needed ammo and move forward. Engage the Locusts, prioritizing Longshot for distant enemies and Shotgun for those with Shotguns.

Locate Cog Tags (CT23) in a small section to your immediate left after entering the area.

Proceed up the stairs and into the building for an ammo box.

Continue down the path. Shoot the collapsible stalagmite-stalactite-column if you have the Lancer, or snipe the Locust Sniper with the Longshot.

As you exit the enclosed area, you will be ambushed by Lambent Wretches. Shotgun them all.

Head down the path, which briefly splits.

At the bottom, near two small walls, you will get a checkpoint. Engage the Lambent Wretches that approach. The left path offers ammo boxes, while the right path has more Wretches, a Boomer, and your destination.

On the right path, take cover and eliminate the Wretches before sniping the Boomer. Use the Lancer on the nearby pillar if you don't have a Longshot.

Head down the path to the right. After another fall, you'll enter a room with many Lambent Wretches. Stay towards the north, shotgunning any that get close.

After clearing the Wretches, an exit will be created. Proceed through it for a checkpoint and a split path.

LEFT PATH: Head forward with your shotgun. Take cover behind the small wall to the left of the ammo box and shotgun approaching Wretches. Use Longshot/Lancer for Locusts above. Move under the right path, take cover behind the first small wall, and repeat the process. Eliminate Locusts on Dom's path if they pester you. Shotgun any Wretches that drop from above. Head forward to a checkpoint.

RIGHT PATH: Head down the path with your shotgun. Take cover behind the pillar, shotgun Wretches, and then Longshot/Lancer Locusts hiding behind rocks. If overwhelmed at the pillar, retreat to the rocks. Hide behind a tall patch of wall and repeat the process: shotgun Wretches, Longshot Locusts. Eliminate Locusts on the Left Path if they bother you on Insane. When you reach the large pillar-rock between paths, shotgun any Wretches that drop in. Eliminate the final two Locusts.

After completing either path, you'll reach a checkpoint and more enemies.

Proceed down the path, taking the small off-branch on the right for ammo if needed.

Engage more Locusts in the hallway. Take cover behind the first wall. Use the Magnum for Wretches on the ceiling, Shotgun for those that get close, and Longshot for distant ones.

As you exit into a large opening, turn 180 degrees to the left to find Cog Tags (CT24).

Turn around and head north to a checkpoint and the next chapter.