320mm rocket carrying pioneers

[Weasel]

I thought this was wrong and an error on Shrapnel part, and now I know it is. You can buy sturmpioneers that run around with 32cm rockets with no reduction in speed which is BS, in fact these rockets were carried by either modified PzI or HTs, unloaded and fired:

"In 1941, the Panzer Pionier Bataillon was one of the Panzer Divisions' strongest support elements with its 900 men and 200 vehicles. Its first two leichte Pionier Kompanien, mounted on the two-ton Pionier Kampfwagen III lorries, each had three leichte Pionier Zug armed with nine light MGs (18 in 1942) plus combat engineer equipment. In January 1941 the third Panzer Pionier Kompanie was reorganized as a fully armoured coy with a fourth light Zug providing support; the first two Panzer Pionier Zug each had five PzKpfw I Ausf. B (plus one in the Kompanie Trupp) modified to carry a detachable Ladungsleger (explosive load), while the third Zug had six SdKfz 251 equipped with the Wurfrahmen 40 rocket launcher, a device capable of firing 280mm high-explosive and 320mm incendiary rockets…

Pages 38-39 of Panzer Divisions: The Eastern Front 1941-43 by Pier Paolo Battistelli.