 The new FBB was essentially a restructured tank brigade, with units created from whatever excess personnel were available.Its combat strength included long-barrelled Panzer IVs and the turretless assault guns of the "Sturmgeschütz-Abteilung" 200, two organic "Panzergrenadier" (mechanized infantry) battalions, the 928th Bicyclist Battalion, and a self-propelled artillery battalion with 105-millimeter "Wespe" and 150-millimeter "Hummel" artillery pieces.Committed to the front on 18 December 1944 as part of Fifth Panzer Army's XLVII.