Japanese have some tricks up thier sleaves

Iwo Jima is a very balanced map, even with the POA.
For .66, the sherman POA will be the only flame unit, and it will only be found on iwo jima. In the future we are planning to include many more flame tanks, such as the Flammenpanzer III, Churchill Crocodile, and T34-flamethrower (name eludes me).
Hand held flamethrower kits are also in the works for Germans, Americans, British, and Russians. Of coarse, these will be in limited supply, as they are very deadly weapons. They arnt your standard pussy 5 meter range flamethrowers. Though they only have 10 seconds of fuel, so spray wisely

(tanks have a few minuets, and much longer range)

This is a sherman POA. As you can see, there is almost no different between it and a regualr sherman (only noteable thing is the seam on the cannon that shows there is a flame nozzel inside)
Flamethrowers were usually mounted on either:
Main gun
Co-axial MG port
Hull MG port