I have an idea for resources gathering that you can buy a treasure map that you can purchase with AC/SG/Meseta

Maybe they have different longevity AC being the most SG being the middle and Meseta being the lowest ( similar to XX days tickets )

A upgrade(s) you can give your mag and increase the potency it will send a pulse wave ripple effect across the minimap ( when active ) and then send pulse waves back to indicate items are nearby