That doesn’t work… This was how I have always used the flamer.
But there are here people that spam flames from the start of the mission to its end (and steal all ammos).
They need to make the flamer/purge staff inefficient against flak / carapace armored. I mean by that that it should still do damages, but a lot less. So less than it should be the bad idea to use a flamer against them.
What is a veteran without ammos? answer: an useless player (yes you can still use your melee weapon… but veteran class is not a melee class).
This is what we have now when a so altruist player with flamer is in the mission and steal all ammos. In this mission, I was lucky. I did not use the kantrael shotgun but the agri one. The agri permits one shot a lot and has more ammo. If I had used the kentrael… I would have been out of ammos lot of times.