Where is the logic behind having a flamethrower damage the vehicle FIRING it? Fix it. It's a completely useless weapon because of this.
TR's too good if our weapons didn't have these massive downsides we would be unstoppable, even now the only thing that can stop us is ourselves.
you shouldn't be taking explosive damage from a flamethrower to begin with, and not from 50% to 80% of it's max range from your target.