Also,irrespective of possible exploits or not,flamers should be like sturmtigers,ie,restricted as to how many you can have,as ive played in battle's where some players use nothing but flamer guys,there also too cheap,compared to the massive destructive capabilty they are capable of,but also flamer guys,like flamer tanks wernt that common anyhow,i think the americans used the most,& then mainly against the Japanese as they were dug in underground & not willing to come out & surrender.
And that goes doubly for saboteurs,in terms of restricting numbers,as saboteurs with flamer's are just almost unstoppable.