Finally went back and managed to clear heroic HoR with a better positioning strategy than what I had tried in the past. ^^
GearScores in the team were around 4650-4850.

All-in-one, speedy-trash version

Normal speed version part 1 of 3

Normal speed version part 2 of 3

Normal speed version part 3 of 3


Comments and feedback are welcome and appreciated ^^


Bonus video: Light's Vengeance, the solo part of the Shadowmourne quest.