Note: This requires a vehicle. Search for resources, such as construction materials, fuel, or medicine, and place them in your vehicle. Stop when you are a rucksack's worth of items. Then, call for a scavenger. When notified that the scavenger is on the way, collect the final amount of resources and place it inside the vehicle. The scavenger will arrive, then search and find a rucksack containing that last item you had set aside. You can then return to base with an extra set or that resource.