Extract an item from each dark zone.
The Dark Zone can be a very unforgiving part of the game and as such you should only attempt the Dark Zone related achievements in the end-game when you are appropriately leveled up and have decent equipment.

The loot that you can find in the Dark Zone can either be regular loot that you would see in the normal areas of the game or it will be contaminated, which will look like gold 'High End' loot but with some red lines around the gold marker. When you pick it up it will go into a special pouch underneath your backpack. These items cannot be carried back through the door out of the Dark Zone and will instead need to be extracted by helicopter.

There will be two extraction points in each of the three Dark Zones and to use them, enter their effective area and hold 'X' to call for the extraction. You will then need to wait for a minute or so while the helicopter arrives and have to defend against enemy attackers and potentially other players who will be alerted when an extraction is imminent. Once the helicopter arrives, attach your contaminated loot onto it and survive until it leaves roughly 30 seconds later. You need to do this in all three of the Dark Zones.

Note. There is a mission to unlock each of the three Dark Zones; East, South and West and during the East and West missions you will have to extract an item. These will count towards this achievement and you're safe to accomplish them as other players won't be able to bother you during these initial missions. Then the only other Dark Zone you will need to extract something from is the South Dark Zone.

Worth: 20 GS.