[pdoktar]

Still you need to put a top-line FC and TI and 120mm gun or some heavy missile, with enough rounds, if you want to meet requirement to take on heavy armored vehicles. So weight is an issue, logistics is an issue and cost is an issue. Still you just put 5-8 grunts on an armored box, where they don´t like to be anyhow, when the firing starts, as they themselves have no control over being killed or surviving, when some bloke on the enemy side wants to drill a hole into the vehicle, which HE considers as a first-rate THREAT, since it has the FIREPOWER and armor to knock HIM out.