What would be the best solution to capture the sound of a high school
marching band on the field at a live performance?  The band is large
and spread out all over the football field.

The primary attribute one would need to consider is that the sound is
very dispersed, but it all comes from less than 180 degrees in front
of where the microphone would be located.

I'm looking for an ideal microphone type, best suited for that job.

Also, where would be an ideal location to place the mics?  High, low,
middle, far from the band, close to the band?

Also, would I need more than 2?

Thanks!!!

From my own experience the best place is in the middle of the band (inside  it).