The flamer was overtuned on release. It also struggles in the current meta. Two things can be true at once.
First of all, to argue that the flamer was fine on release is just nonsense. The flamer used to be the one-stop shop for screen clearing. It singlehandedly trivialized what should be the most difficult moments in the game, even on damnation. Part of this was admittedly related to its interaction with chastise the wicked. Nevertheless, at the time the flamer nerfs were implemented, they were completely justified. And yes, for a while thereafter, the flamer was mostly fine.
Fast forward to post-patch 15, and we’re living in a different world where the classes have all been rebalanced (complete with new skill trees), and so have the enemies. Meanwhile the flamer is still basically the same. As far as I can tell, the reasons why the flamer is currently an underwhelming pick are as follows:
1: Hordes are smaller these days, and they tend to spawn in waves rather than all at once. Meanwhile the elites that the post-nerf flamer now struggles against are spawning in higher numbers.
2: Zealots have immolation grenades, which the flamer must now compete with.
3: As part of the class rebalance, melee weapons generally became stronger vs hordes. There aren’t many melee weapons left that are actually weak enough against hordes to justify picking the flamer as a companion.
And that’s where we are. As far as what to do with it now, I think there are basically two ways you could go with the flamer. One is to recognize that if the flamer is to retain its current form, it needs to do what it does faster. The slow equip time needs to go, and maybe an ammo increase is also required. In a world where the flamer doesn’t get the big screen clears anymore, it can’t be as slow and clunky as it currently is. Basically make flamer flexible enough to be used more often since it now has comparatively less of an impact.
The second option is a complete redesign. Fatshark has shown that they are willing to do this before, and TBH I’m kind of hoping they’ll do one here. In that case we could hopefully get a flamer that actually takes mass into account, which would make it a hell of a lot easier to balance in the first place. If that happens, I could see the flamer becoming more effective vs armored enemies again.