[thatguy96]

I can answer some of question one from Osprey's book on Flammpanzer.

It says that on 1 March 1940 the first Panzerflammabteilung (armored flamethrower battalion), given the designation Paznerabteilung (F) 100 was established. This included HQ elements, a reserve element, 3 Flammpanzer companies, and support elements. This unit was equipped with Flammpanzer II.

Besides dedicated Pz.Abt(F), Flammpanzer were apparently also distributed on a seemingly ad hoc basis to conventional Panzer elements (at brigade and company level). This is the case with PzKfw B2 (F) and Flammpanzer 38.

Flammpaner III were in fact organized into 7 vehicle platoons (Flammzug) with the idea that they would be standard issue to Panzerabteilungstabskompanie.

SdKfz 251/16s were issued similarly as a Flammzug attached to the Stabskompanie of standard PzGrenadier regiments. These platoons were 6 vehicles, and apparently by sometime in early 1944 had been moved into the Panzergrenadierpionierkompanie from the Stabskompanie, also within PzGrenadier regiments.