So i am looking for people to volunteer (including me) to do a mission OVER AND OVER AGAIN for like 50-100 times to see of the chances of getting rarities actually drops if you replay the mission too many times ... Keep in mind the fire crystals you find from treasure boxes ... since they are the most common thing you can get out of "rarities"
Doesnt matter which mission ... but do mission like "High temperature hostage,In Cold Blood or Sewer Stash" since they have a nice amount of treasure boxes at the first floor... (also try to speedrun it so you have the best results)
If you actually do this test post your results here