Yes It is.
260 armor was bounced a lot AT even from SU-85. This is too hard to counter while brumbar fire 1-2shot kill whole squad.
They do have high HP that already need 5-6 shot form AT to take it down. plus they performance are better than KV2. I've test more than 10 time.
for the same thing on allies side
ISU-152 Got nerf too. both armor and range.
brumbar is slow and spin around
its cannon range is 35 and need to manual fire and slow reload. against sov 6 man teams, brumbar hardly 1-2 wipe. It hits hard enough (if you stand still!) to force you to retreat.
su85 has 60 range and 35 sight. su85 also have vet sight.
su85 easily ward off brumbar without the armor nerf.
again i disagree with the 1-2-3 nerfs to ostt-vsl-brumbar.
basically kills ost late infantry game..again!
if the mod teams want to close the gap between late game strenghts and compress all units performance for eek-sports. Then they need to look at allies elite infantry and heavy AI tanks too!
Why always Ost?