Has the looks of a heavy duty deep bush/deep wood fire truck. The over kill crash bars up and over the hood and cab are there to deflect tree branches etc. I can't find any pics at the moment but we do have them in Canada, how ever this ford is a lite duty one in comparison to some I've seen. The ones I've seen have been Kenworth cab/chassis etc MEGA duty trucks.
Looks like a Brush truck, forest fire/brush fire rig. We have them around here. But it doesn't apear to have a water tank. Similar rig: Caption says "A converted military truck being used as a brush fire unit"
im gonna bet that truck was used for penetration (leave it alone rick!) thick brush and heavy tree branches abound. they use this to get in to the thick of the forest to cut a fire line.
I went to the auction today, that truck was masive,77 F-750 with only 11,200 miles on it. It brought $3750.00