20% mark hit multiplier is not applied after the WONY update.
Damage calculation works as before but this final +20% is no longer there, even though talent description still mentions it:
"Diamondback randomly marks an enemy.
Hitting that enemy consumes the mark, guaranteeing critical hit with damage amplified by with 20%"
It works neither for body shots nor for head shots.
Please pass it to devs for review/fix.
1 year later and bug is still there, in the same form: 20% damage amplification is not applied. As mentioned earlier it stop to work when WONY was released.
Exotic's talent description:
"Diamondback randomly marks an enemy.
Hitting that enemy consumes the mark, guaranteeing a critical hit with damage amplified by 20%. After hitting a mark all shots fired are guaranteed critical hits for 5s.
A new random enemy is marked afterwards and whenever you reload."
Example Calculation:
Diamondback lv 40 base damage (WBD): 329084
Weapon Damage multiplier (WD): 54.2%
Critical Hit Damage (CHD) 56%
Head shoot multiplier (HS): +74%
Supposed Mark bonus: 20% amplification damage
Tests performed on open world and rifle range
Shot into body of marked enemy: 791617 = WBD*(1+WD)*(1+CHD) = 329084 * (1+ 0.542) * (1+0.56)
Subsequent shots when 5 seconds "all shots are critical" active: 791617 - the same as initial shot as there is no 20% amplification bonus
Head shot marked enemy: 1167128 = (WBD*(1+WD))+(WBD*(1+WD)*CHD)+(WBD*(1+WD)*HS) = (329084*(1+0.542))+(329084*(1+0.542)*0.56) + (329084*(1+0.542)*0.74)
Subsequent head shots when 5 seconds "all shots are critical" active: 1167128 - the same as initial shot as there is no 20% amplification bonus
Damage amplification, if present, would be applied at the end of above calcucation. Numbers would be following:
Shot into body of marked enemy: 949940 = (WBD*(1+WD)*(1+CHD))*1.2 = (329084 * (1+ 0.542) * (1+0.56))*1.2
Head shots marked enemy: 1400553 = ((WBD*(1+WD))+(WBD*(1+WD)*CHD)+(WBD*(1+WD)*HS))*1. 2 = ((329084*(1+0.542))+(329084*(1+0.542)*0.56) + (329084*(1+0.542)*0.74))*1.2