The fox drive is done in stubble paddocks and any areas of bush, small enough that 5-10 people can walk across firing a few shots to scare the foxes out to the waiting shooters, on the up-wind side.
This year we got fewer foxes than usual possably because of the drought.

I have 2 videos of this fox drive on my U-Tube site.
http://www.youtube.com/user/ckmonty