Rejecting American doctrine that an armored personnel carrier should serve as a "battlefield taxi" and not as an assault vehicle, the Germans developed the HS.30 as a vehicle to fight alongside tanks and from which their mechanized infantry could fight from under cover. The German military came to this decision as a result of its World War II experience with "Panzergrenadiere" (armored infantry). German doctrine saw the SPz 12-3 as part of the squad's equipment, and the squad was trained to fight with the vehicle in both offense and defense. Unlike the American M113, the HS.30 could not float, but as German doctrine envisaged the HS.30 as a component in operations combined with main battle tanks that also lacked such a capability, this was not seen as a grave disadvantage.