Easiest way is to reduce cap and mp price for PAK.43 level (which is much more useful then B-4). 500 mp, 10 cap. Add suppression if single shot.
i had this idea about the B-4.
infanry sqauds once the B-4 is build can drop a flare(like UKF sections)
That's good too.
I will choose Katyusha any time over ML-20, and ML-20 over B-4...
As with most players. Including me
Static artillery is too expensive and vulnerable to their more than modest performance.
the problem right now is...
Relax, it's one of those guys who say "Katy is fine" even if the developers accidentally reduce Katy AoE at twice