I don't ussually bump threads, but i haven't found an answer to how P.F. should be put in line.
Though i am certainly not a veteran of this game, i do think that just increasing their CP and reinforcement cost will tone down their current performance. It makes them more expensive to maintain, thus we will see less A+ move blobs in most matches.
I'd say a pop increase with any mixture and quantity of vet nerfs, reinforce cost increases, and nerfs to g43 moving dps (cooldown or accuracy). Not sure what number or combination (pop increase being a no brainer though), but I think those are the areas of issue with panzerfusiliers.
IMO, panzerfusiliers come out late enough as it is considering that their role overlaps (honestly, its basically the exact same) with that of volksgrenadiers, so a cp increase would just make them more awkward to work into a build.
Also on that point, I don't think that the issue with panzerfusiliers is that they come out too early (the kind of issue that a cp increase would remedy). It's that theyre extremely blobbable. This is because theyre low upkeep so you can spam them (6 popcap, which means youre only taxed 9 manpower a minute for a full squad of panzerfusiliers; and cost 24(?)25(?) per model to reinforce), because they have great moving dps (this allows them to chase down and wipe extremely well), because they have the ability to avoid HMGs due to the fact that they see HMGs before theyre in range of them (50 sight range i believe, 15 more than standard sight range, and 5 more than the range of an HMG), and because they have excellent vet. Another minor thing is that they can get the 3 g43s and still pick up another weapon off the ground (...3 g43s and an ober lmg34 with +20% and + 40% acc is scary, even if unlikely).