I'm a little confused about the latest Raid boss, CTU. One boss I'm participating in partricular. I've done 20m damage and have an "impossible" chance of a drop. I'm 3rd top player on the boss. #1 and #2 are part of tier 2, while I am tier 1.
2,000 actions, 1,000 of which has to be healing. If you don't have 1,000 Heals, then you won't qualify for a drop.