Number crunching: Heroic Tank

NORMAL, Post-NERF (Tier 6):
Phase I – 15,600,000
Phase II – 22,700,000
Phase III – 12,250,000
Phase IV – 13,550,000



Heroic (Tier 7):
Phase I – 4,300,000
Phase II – 19,200,000
Phase III – 12,000,000
Phase IV – 12,000,000



So to beat Heroic, if each player can do 2% damage per phase, it would look like this:
Phase I – 2% – 86,000
Phase II – 2% – 384,000
Phase III – 2% – 240,000
Phase IV – 2% – 240,000