Exactly what it says on the tin.
It’s clear the forums all have their own ideas for how things should be balanced. At the barest minimum, a list should be published for the perusal of the entire playerbase.
We can focus on glaring issues all we want, but we need a holistic way to analyze what we have, as well as the changes that were recently made.
The criterion for who belongs to what tier should be based not only within its category, but its effect on every other thing as a whole.
As an example, despite having similar battlefield effects, the Scott, with its 75mm dual-purpose HEAT round with 89mm of pen, and a rate of fire of roughly 3 seconds, has a far lower tier than something like a panzerwerfer.
Both are extremely potent as anti-infantry platforms, but they are arbitrarily arranged. The former even has better capability to address tank threats as a whole, despite being at a lower BR.
The battle ratings for tanks should not be solely dictated by its ability to fight other tanks, but how it influences the match, as a whole. In a similar vein, the ability for planes to engage other planes, or its payload, should not be the sole deciding factor for its battle rating.
Please publish the list, and allow us to see everything, as a whole. The community seems to be more than willing to lend its feedback.