The Brushfire is the frontier version of the Fireworks Truck, though it lacks that unit's Accidental Ignition attack. You can kill this unit during riots. Be careful when facing this unit, as it has a chance to inflict stun!
The computer will target a unit with the center of the attack pattern, even though damage is higher for the spaces to the immediate left and right of center.
This may have be inspired by the Dragon Bird in F-Zero, a video game racing series. The name might have come from a power boost name, the Blackfire.