I dunno. Flamethrower's plus zombies equal flaming zombies that spread fire. Might not be the best thing?
+1.
I reiterate, decreased brain function.
They may or may not feel pain, so you now have a flaming adversary whose advance has not faltered because their brain has failed to receive the message that fire burns!
I'd like to see this play out, I think the OP would evacuate his bowels when the "real zombies" started sprinting towards him and his plinker.