The amount of damage inflicted to Predator for the daily challenge is not accurate, for the amount of damage listed during the After Action Report differs from what’s applied to the amount of damage added to the daily challenge value.
So, either the amount of predator damage calculated for AAR is wrong or the amount of predator damage calculated for the daily challenge is wrong.
For instance, I inflicted ~2,400 points of damage one match in AAR, but the daily challenge only counted ~1,600 of that damage.