While doing the mission for the eris urn bounty I was able to land on the Ogre and stand on him for 26 Seconds. Challenge is on guardians
Here it is from a second angle: https://www.youtube.com/watch?v=1Em_St3dee0
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Haha on Crota I was planning on using a bubble with Saint-14 to blind the Ogre that comes out of the right boomer tower. I was late so I panicked and jumped down on top of him. I used it on top of him and created a floating bubble to protect him.