: multi-barreled rocket-launcher, not to be confused with the Nebelwerfer.
: Is it known what kind of rocket-launcher that was? I know of the 10-barrel : launcher on the armoured Maultier halftrack, and that an 8.8cm missile : launcher existed or was under development, however that used racks.
: Does anyone know what kind of weapon Kraft's forces had around Arnhem 1944?
This same question came up not too long ago in a web forum, and the best sounding response was that it was an 8cm Vielfachwerfer. This was an SS modified Somua MCL half-track, and according to Market Garden OOB data the SS Werfer Avtelung 102/105 had the weapon, at least. There were two version of the (f) apparently, one carried 16 French Brandt 81mm mortars, the other 2 racks of Russian 80mm Rockets (presumably captured). You can find pictures of these (and many other) exotic vehicles at:
http://forum.axishistory.com/viewtopic.php?t=23596
They are well down the page.