B4 was our first choice.
However, the commander needs something reliable to crutch onto, since every other ability is situational.
There is no way to make B4 work reliably, without either making it look weird (e.g., B4 shells dealing same AoE as ML-20), or letting it perform like a complete RNG cannon, which would ruin the doctrine.
There was also always the danger of overbuffing B-4 and forcing players to fight vs waves upon waves of Counterattack/Tank-Hunter tryhards.
Cannot B-4 be something opposite to STD or demo? I mean, SDB and demo have inta-death circle as big as AoE, so B-4 could be made very accurate, with huge AoE but at the same time small death circle so it wipes only clumped squad, but direct hit on HMG crew for eample would kill only 1-2 models while inflicting heavy damage to the rest of the squad.
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I like the idea of ISU call-in with only AT rounds.