Mislabeling of Achievement Annihilation Now

The 10th anniversary achievement Annihilation Now for the mission “Forbidden Weapon” didn’t appear at first to work for me but I did get it. The description says to kill all enemy structures but this is not what it appears to check. Once I killed some left over Phoenix I got the achievement, it is based on killing all Enemy Units, not just Structures. Either change the check to be just structures or update the text will fix this issue.