Eliminate Dirty Excavators, DirtyResearchers, andDirtyArcheologists at Eidolon Shrine and Tabor. Then, talk to CamillaMagnum in Cirrugor. Use your quest tracker to see your progress.
Camilla Magnum: I want you to get dirty with the Dirty Dozen this time! NakanoAzusa: Get dirty? With all of them? Camilla Magnum: Yep! Excavators, archeologists, researchers - all of them!