Especially when on top of buildings and on the plane. It is easy to fall into the swamp or get taken into the air and thrown randomly through the swamp by demons, so keep a close eye on your surroundings. In 'Sundown' you will find 9 stashes and in 'Nightfall' you will find 7 of them. You will need to load up the chapter 'Sundown.' This achievement branches over 2 different levels. This video seems to be the most direct way in finding the equipment stashes. All credit goes to PowerPyx for making such an easy-to-follow video guide. Before crossing, drop down and checkout the back the truck for the final location. + Exit through the window towards the church. This small room on the left will have several items. + Exit the bathroom, head across and disable the traps. + Inside the mall second floor just left the escalator in the bathrooms. + Back of a truck after meeting the giant shrimp for the first time in this area. + Second floor, first house after the ferry (slip around the edge of the broken wall to access the stash area. + The last stash is just before the generator next to the tree for the ferry. + After being attacked by the large shrimp, head across the wing of the plane to find the shotgun stash in a small area full of building rubble. Once inside, check the cabin and cockpit for supplies. + Head across from the gas station to the plane. + Check the gas cans, then use the small ramp to reach the roof of the gas station. + Head back to the gas station, pickup the loot next to the gas cans, and on the counter. There will be a small hole with a trap inside, cut the trap and head inside. + Head towards the gas station, but keep to the left and follow the long building across from the gas station. + Across from the storage locker there is a truck with a stash in the back. + Behind the turned up car in a shed/storage unit just below the guard tower. + Straight across from the exit in the guard tower. Here is a written description of the following locations which can be seen in the video: Some of these stashes are also marked with big ranger logos near where the stash may be found. You can never go wrong with collecting extra filters, but as I mentioned above, check everywhere including the following locations for extra loot. Something to note is that in the video I pick up items that do not relate to this achievement/trophy as well.

I highly suggest that you explore the swamps further than just what is shown in the following video as there are several weapons, tons of extra filters and plenty of ammo to be scavenged. For this you need to find all the ranger stashes hidden around the swamp. Throughout these two swamp areas you will find all sorts of loot. This takes place over two levels, 'Sundown' and 'Nightfall'.

Sundown metro last light guide