They reduced the damage a Hunter does on fire to "not much".
WHAT THE *insert rant here*!
1. A Hunter is extremely loud on fire since he is crying out in pain constantly.
2. A Hunter is more easily noticed as they will see a fire on the rooftops which never occurs, so all camoflauge is lost.
3. A Hunter can't walljump whilst he is on fire, and with no way to get rid of the fire, he will be unable to get to rooftops easily and get high damage pounces.

NOW THEY'VE GONE AND REDUCED IT! I shall have to rethink my strategy now...

Oh well ^^

When being on fire was pretty much what everyone did and a obvious choice, there is a balance issue.

to balance this new adjustment. the tank can now walljump

Tank can leap and wall jump but cant throw rocks
Witch has 8000hp but kills in two
Boomer has super long range vomit but smaller hordes
Smoker kills in one but has v-long recharge and reel in is slower
Hunter pounce when on fire kills instantly but only has 3 seconds to live when on fire

I think this would make for an interesting set up

And a completely mad game.

And a necro'd thread