Helicopters and paintball guns sounds worth a shot!
Hard to say if that is due to ticks or not in the photos.
In the places where a lot of moose are dying south of us, like Maine, we're talking "heavy infestation" as in nearly 50,000 on one animal when an adult dies. An adult D. albipictus tick takes about 1 ml of blood. If they are in good condition, it can take about 30,000 to kill a calf.
One of the many joys of climate change. Mild winters mean much more ticks, and the area of their effects creeping upward more and more. We'll see.
The "good" news in my region is that we simply don't have the moose population density to support that many ticks! Heh.