In the game Team Fortress 2 the Pyro class is way to overpowerd being able to just run around and spray enemies and then get kills because the fire last so long. First of all there should be some kind of downside to shooting the fire constantly, like maybe have their gun overheat causing it to stall or do damage to them. Second the pyro's flame last much to long even if you manage to kill the pyro there flame will usually kill you.