Robert is quite right that at least on one occasion at least one A7V fielded a flammenwerfer team that mounted a flame attack from outside the tank. Given the close quarters and what was no doubt foul air, I shudder to think of the results of trying to fire one from inside the tank. Prior to the Kaiserschlacht, a detachment of tanks was seconded to Hauptmann Rohr's famous Stormtrooper Abteilung for training in stormtrooper tactics, basically what to do if the tank was disabled. Th crew were to dismount their machineguns and, hurling hand grenades, were to fight on. Given that the crew numbered 15 - 18 men led by an officer, and sometimes carried additional supernumeraries, they could give a reasonable account of themselves.