Talk:Atmo Systems/@comment-190.194.171.29-20181228055843

10% chance means an average 10 rounds to get the x4 Atmo Systems reward.

Since you need 10 to reach Hand Rank you will need an "average" of 30 rounds to get 12 of them. Even with fast farm methods  (sub 3 min heists)  it will take you hours of mindless grind to get them. I dont know what they were thinking with heist reward pool.