This was by far the best secret mission destiny has ever seen. I will even go as far to say this was better than the black spindle mission in D1. Bungo you know what to do.
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Mission was good at start. Then they ruined it making it from weekend mission for whole week mission. Then any event activated that mission. In the end, they just added it on map of Io and all mystery and spontaneous discovery of that mission exist at all been destroyed. Sad truth, those missions only good for 3-4 runs successful runs. Then they just useless.