Talk:Loki/Prime/@comment-54.149.96.34-20150331105144/@comment-10743657-20150331111815

Rewards cycle in endless missions. In Survival, they cycle every 20 minutes. Minute 5 and 10 are rotation A, minute 15 is rotation B and minute 20 is rotation C. Then it repeats. In Defense, they cycle every 20 waves. Wave 5 and 10 are rotation A, and so on.