Due to the sheer surplus of M4 Shermans available to the United States during World War II, a great number of separate tank battalions were formed; these were typically assigned to infantry divisions to grant frontline troops permanent armoured support, a luxury which their Comintern opponents never possessed.
A variant of the M4A3 Sherman equipped with a 105mm M2 / M101 Howitzer. This version is designed to tackle fortified positions head-on, destroying them by means of direct fire. However, unlike its predecessors, the M4A3 (105) lacks a stabiliser as it is not meant to fire on the move.