Not really that big of an issue but could be relevant for multiple playthrough so I thought I ask.
The infinite ammo works find for most of the game for Claire and Leon playthough. All weapons have infinite ammo. But it doesn't work for the Leon flamethrower.
I think it's because the mod makes all ammo to always have 99 units which works for other weapons because there's no way we will shoot more than 99 bullets.
But flamethrower due to the mod is also always at 99 as well but then if I burn for more than 99 fuel, then when I reload it uses everything up. So my fuel is at 0 and I can't reload because there's no fuel left. Only if I burn for less than 99 fuel then reload then the infinite ammo works as usual. But for flamethrower to be used effectively it must use more than 99 fuel at a time. Maybe set the value of the fuel to 999?
Since it's a late game weapon it mostly doesn't matter as much since I complete most of the game anyway but I'm at the lab area where fire weapons are a necessity and also for my further playthrough.