To add to this, these are what changes I’d make (as an average-to-meh Italian GRB player):
75/46 M43: 4.7 → 4.3 Honestly I haven’t played this one in a while, but it’s just underwhelming on the whole.
Leo 40/70: 6.0 → 5.3 Remove or nerf the AP if necessary, but this thing is barely ok as an SPAA at 5.3, let alone 6.0 (plus it can be penned by literally any MG).
R3 T20 FA-HS: 6.0 → 5.3/5.7 It’s just not good enough for 6.0, and its HVAP is not overpowered even at 5.3/5.7. It isn’t 3.0 or whatever anymore like when it was added, nor is the stabilizer effective beyond standstill.
M26A1: 6.7 → 6.3 This should apply to all M26’s, they just aren’t good enough for 6.7.
C13 T90: 7.0 → 6.7 This should be the vehicle foldered with the AUBL/74, and the differences between them are not enough to warrant its BR being higher than 6.7.
R3 T106 FA: 8.0 → 7.7 I would prefer it to go lower, but then in downtiers it would be too strong, so it should go down to where it won’t run into ERA tanks 70% of the time. Plus it’s a literal boat that makes it incredibly hard to use in any situation outside of ambushes/camping.
M113A1 (TOW): 8.3 → 7.7 It’s just worse than every 8.0 ATGM vehicle, and could be balanced alongside vehicles like the Marder A1 (since the M113A1 lacks a 20mm).
SIDAM 25 (Mistral): 9.7 → 9.3 Its in comparison to the ZSU-23-4M4 it has a higher missile count, but due to the off-the-rail-turning ability of only the ZSU-23-4M4, it’s less effective overall.
KF41: 11.0 → 10.3 Without fixes to the guidance of the Spikes, the ability to hit targets at <350m range, and an increase to the number of Spikes, there is no reason it should be higher than the BMP-2M. Its APS also does not work.
OTOMATIC: 11.3 → 11.0 With the new decompression, the OTOMATIC should at least be lowered to a point where it outranges SPAA 0.3 BR below it, and with its APFSDS (the number of which should increase to 38) it should be 0.7 above 10.3.
Ariete PSO, Ariete, Ariete AMV: 11.7/11.3 → 11.0 Without fixes for the armor, just remove DM53 from all of them and stick them at 11.0 where they can be somewhat useful.