Normally only available during the Fire Truck Diversion and is used to put out fires, the fire extinguisher is a completely non-lethal weapon as its spray does not damage anyone. However, if sprayed long enough, people will be knocked backwards, and doing this repeatedly will eventually kill them.
Although non-lethal, it can be used as a deterrent, as anyone sprayed will panic and run away, including police.
Begin the Fire Truck Diversion and play normally. When a building has another Blaze parked outside, find a fireman and attack him so that he will drop his extinguisher. While the extinguisher is still on the ground, quit the diversion. It will remain on the ground, and it is possible to pick it up. As with all weapons, it is added to the Weapons Cache automatically, even if it is dropped again immediately.
During the Fire Truck diversion, it is refilled when entering the Blaze, or can be refilled at Fire Hydrants.
Outside of the diversion, it will be empty when picked up and can only be refilled at Fire Hydrants.
When approach a Fire Hydrant, there will be a prompt to refill it, note that the Reload button must be held down when refilling.
When starting the diversion, the current fill level will be ignored, as a different Fire Extinguisher is provided. After exiting the diversion, the owned Fire Extinguisher will contain the same amount of water.