[url]https://youtu.be/b2LQvz2s9kM?t=4m10s[/url]
Something me and a couple friends found you could do on this weeks nightfall (I didnt directly link the video so you can just skip to the point).
Basically me and my friends found its possible to kill Taniks before you actually reach his boss arena. He drops his scorch cannon and banners but also once you reach his boss arena he will respawn. I don't think bungie was expecting this to happen
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Happened to me. My fire team just kept laughing and then we killed him with his own scorch cannon. Arc snipers.