Mad Max

All camps in the game (Oil Pump, Transfer Tank, Top Dog, and Stank Gum) have optional objectives that can be viewed when in the camp by pressing and holding just like at any location. There will always be scrap to find and scrotus insignias to destroy. There may also be a history relic to find and/or a project part to find. You'll need to find everything listed when you hold and get the "Location 100% looted" message for it to count toward this achievement.

While many camps are simple enough to track down all of the optional objectives as you progress through them, it is far easier and less stressful to first make a beeline toward your main objective and take over the camp as quickly as possible. Once you do so, the camp becomes friendly, allowing you to explore and shoot without worry of accidentally dying.

You'll most likely be able to complete all optional objectives in most camps on your own as long as you just explore all the edges of the camps (and look up and around for scrotus insignias that are sometimes hanging and need to be shot). However, there are a few camps with some very sneakily hidden insignias, or side paths you may miss that lead to a scrap to loot. Thankfully, there are great video guides available for every camp in the game. There are far too many to embed them all, but go to THIS PLAYLIST to find a video for each camp to use as needed.