Alright, I'm some boohead f2p who mains soldier so why not, lemme just ask a question.
Is the BB + Conch OP? I don't find it to be, it's easy to counter and limits firepower for the soldier. And yet I find around 1/2 the community finds it OP. I dunno.
The loadout itself revolves around how accurate you are, so if you aim really bad (which happens occasionally with me), filling up rage takes longer and you don't get +15 HP. Reduced clip size means I reload a lot more often, and the conch means that if I'm in a jiffy and my BB needs to reload I have no reliable method of attack than my useless pain train.