Sorry for the super late reply on this one. Im getting a ways behind in my email right now.
Thanks a bunch for the long & detailed feedback. Its always great to get feedback with this amount of time & thought put into it. Were still thinking about the relationship between the Pyro & the core combat classes, in particular that of the Pyro & the Soldier. Weve tried a couple of things in our internal playtests, but havent found anything we like enough to ship yet. The recent update to the flamethrower with the audio cue played when youre hitting an enemy seems to have been a good step.
No details on the Pyros unlockable weapons yet, sorry. Were still focusing on the Medic, and the underlying system. Your fire axe will be happy to hear that the Overhealer didnt work out as well as we wanted it to, and wont be making an appearance.
Robin.