Hi all,
Well there are games with provable levels of ballance.
Eg they use a FIXED method of determining PV which is proven by years of game play.
And they use army composition to reduce the effects of synergistic imballance.
Armies of Arcana , Full Trust, Firefly, ChallengerII, to name a few.
As 40k rules are primarily used to '...sell toy soldiers to children...'
Its only the skill of the game developers that allow the current ( minimal) levels of balance in the game.
40k uses inapropriate game mechanics that result in loads of additional rules , USRs , Vehicles rules , and codex special rules.
Its no wonder the devs have a hard time getting things ballanced !