Talk:Fall 2015 Event/@comment-26876405-20151207090828/@comment-84.222.216.15-20151207104204

As a rule of thumb, if get more than 30% failures (retreats, failed S ranks), it's not really worth farming a map. Drop rates are already low as it is, there's no need for additional RNG. You either revise your fleet to achieve better consistency, or you stop and go farm for something else (unless you're looking for your waifu and you don't care about anything else).