flamethrowers are going to be asymetrical, but in my opinion pretty balanced. Something that vanila cannot into.
Soviets gonna have ROKS-2 and ROKS-3 with few cosmetic modifications, 42 meters distance, 8 seconds shooting time, 23 kg weight. They are also similar to rifles, and ROKS-2 will have camouflaged backpack, so it will be harder to spot soviet flamethrower.
Germans going to have Fmw35 - 36 kg weight, 25/30 meters distance. I couldnt find the time of shooting, but it can be estimated to ~17 seconds from the fuel amount difference, i guess? 7,5 l fmw41 / 12 l fmw35
Then, fmw41 - 22 kg weight, 32 meters distance, 10-11 seconds, 2 cosmetic modifications ( one with tube, another with ignite cartridges )
We are also developing efmw46 which most probably will be exclusive for Berlin map, its 1-time use flamethrower.
Alpha 5 is only going to have fmw41 and ROKS-3, 1,15 final release probably wont be much different.