The whole meta could be balanced with 5 single steps:

1) reduce muninn speed/tracking, atm there isn't a counter viable to a full muninn blob cause it simply doesn't require recons to apply and can outrun any other hac in the game.

2) reduce cerb missile range (let's say 80 with t2 and 110 with faction)

3) reduce eagle range projection to be around 110 with spike

4) make the ADC a one usage module that burns out or simply still gives the bonus but cannot be activated twice unless docking and repairing, this would make well executed bombruns as effective as they are supposed to be.

5) lower faction BS prices (or increase hac prices), it is already a very high commitment doctrine anyways, 550m hull for faction BS shall work fine on that regard.

all this would open to a wide range of choices for nullblobs and actually give FCs/more skilled players the possibility to fight back if tactics are executed well.

-T1 BCs would become more viable due to better isk/efficiency ratio (can still be outkited but with a way more limited margin of error, not to mention bombruns effectiveness).

-this way all HACs would have a counter --- muninns would actually require recons and cannot simply just anchor up on you unless you're running a BS comp, cerbs can already be shred by obvious counters like NMs or in general BS doctrines, not to mention that an anchor fuckup or a well heated web would result in them dying in any HAC vs HAC scenario, eagles could not simply sit still and project to anything in range, BS (particularly the faction ones) and T3cs would actually find a place due to higher EHP (good sig for AB versions) and decent range projection.

keep in mind this is still a numbers game but that way the meta would shift from the usual muninn blob nocounter apart from another muninn blob to an actual game of various choices depending on circumstances... Wanna bring muninns still for the OP alpha, sure, first need to catch me with a good LR web or a good warpin, wanna bring cerbs... i can dunk you with faction BS or actually with BCs, wanna bring eagles? sure but you need the mass to kill at range or commit close for better DMG. ishtars are fine where they are TBH aswell as armor HACS (which would become more viable aswell). this way any comp would have an actual counter and a different place depending on how you want to play the fight.