but it is just part of the game. Yes...in real life you do not have to be affiliated with "forestry" to have a brush truck. But in the game to purchase forestry equipment you just have to have the extension. And I suspect that if you do not have a "forestry" extension, no wildland or brush incidents will spawn.
I'll concede on the brush unit, as you do have a very valid point.
I'm still interested in the traffic unit though.