Basically this
The knight-captain looked out the window, behind the lead helo, there were other two. Pitiful. The only force that could move unnoticed by the normal society to help the "good" wizards. This war was not a thing the Vatican could sit neutrally, whatever would happen in Hogwarts would have repercussions all around the world.
Blessed swords, shields, armor and rifles.
*Knight-captain:* "We'll make one circle then we'll drop at first chance, fast-roping.
Double check your targets. There's kids down there, if you are not sure, target whatever the kids are casting at."
*Pilot:* "We are past the non-caster repellant. Illusion breaker active. ETA 30 seconds."
*Knight-captain:* "Look for the VIP from your lists. If you see a HVT that takes priority."
*Pilot:* "Magic interference confirmed. Radio offline. Nav offline. ETA, 10 seconds."
*Knight-captain:* "There's the castle... Heavenly Father..."