Ark Chest
After you defeat Lug the Nut, take the elevator in his chamber up. Follow the path forward up two flights of stairs to find the ark chest.
Storage Containers
1. Storage Container
Enter the shaft and follow the path forward until you come to a room with multiple mutant enemies. The container will be on a cylinder shrine-like area with many offerings around it.
2. Storage Container
From the previous container, keep heading deeper into the shaft. Eventually, you will come to a big open room with a rock bridge. Jump down into a broken pipe and work your way across the bridge. When you get on the bridge, enemies will spawn. After you defeat them, head through a large door to find the container straight ahead in front of a large wooden crate.
3. Storage Container
The container is located in a blue storage unit next to a yellow bulldozer across from the previous container. To open the storage unit and reach the chest, you will need to shoot the pink lock.
4. Storage Container
From the previous chest, head deeper into the shaft until you come to a room with lots of enemies, including two mutants who throw fire. Head down the first set of steps and take a left before the metal bridge to find a pink ladder leading down to a ledge. Climb down the ladder and head to the end of the ledge. Turn left to find the container in a small room.
5. & 6. Storage Containers
After you defeat Lug the Nut, take the elevator in his chamber up. Follow the path forward up two flights of stairs to find two containers in the large room with the ark chest.