A more tactical pyro, replacing the MAIN WEAPON of pyro.
A gas can or gas hose of some sort. Can make pools of gas that will ignite when the weapon runs it's default taunt(this taunt). Good tor traps and area denial. Loss of main weapon will make playing this type of pyro more difficult (shotgun/flare as only good weapon), but great potential payoff. Length of taunt gives enemies some time to get out of the gas.