Some Sturmgrenadieren information from a post by Ts4EVER at Battlefront CMBN forum today.
http://community.battlefront.com/topic/119223-modules-with-ss/
"The Germans raised a new type of organization in the summer of 1944: The Panzer Brigade. This was essentially an attempt to recreate the kind of ad hoc "kampfgruppen" that had proven so apt at destroying Russian tank spearheads in the fighting in late 1943 and early 1944. One example would be "Kampfgruppe Bäke", equipped with a mix of heavy tanks and motley support troops, which had broken out of an encirclement (either the Cherkassy Pocket or the Korsun Pocket, I forget). These Panzer Brigades were smaller than a normal Panzer Division and had no high level support units like artillery or reconnaissance. Just bare bones tanks and infantry in half-tracks.
These were very well equipped, especially the first ones raised. They had Panther tanks and Panzer IV/70 tank destroyers as their main armored component. Their infantry used a somewhat unique organization: Usually armored Panzergrenadiers carred mostly K98k rifles, the MP40s and automatic rifles of the squad leader and his assistant and two MG42s for firepower. The Panzerbrigades were to have Sturmgrenadiers. These squads were equipped completely with Stg44 assault rifles (one of the few units where this was, to my knowledge, actually the case). They had no infantry crewed MGs for fire support: Instead they relied on half-tracks with 2cm or 1.5cm triple guns for this kind of work + of course aa defense. These support elements were on company level, making these units very compact and easy to manage.
In the event they were not used as intended though, but hastily thrown into the western front, first in the counter attack at Lorraine. They found out the hard way that the Americans were better organized than the Russians and the tactics of the Eastern Front instead lead to high losses. Hasty training and bad planning also contributed. Quite an embarrassing performance all things considered.
Some of the Brigades were later used in Holland, which is why you can find them in the Market Garden module."