Better Missile Augment with this anointment?

Got a 100% damage bonus Vanquisher anointment. Do I stick with the basic Missile attack, or go with Target Softening knowing the anointment eats up some of the damage reduction? I’m farming Graveward so the tracking option isn’t needed, and the nuke’s radiation damage probably doesn’t do much.

Just use the vanquisher rockets for graveward, fast farm, avoid green balls, shoot his big hand when he smashes it down then shoot him in the head while he rests and that’s that.