Talk:Fang Prime/@comment-174.89.16.113-20150315193129/@comment-99.240.248.164-20150318215648

They tell you when an item spawns in the rotations/time ex: in a defense mission, rotation A is after 5 waves, B is after 10 waves, and C is 15 waves and then it repeats. I works the same in survival, except it's every 5 minutes.