I remember reading somthing about a german experiment with flamethrowers that they put on the back of some DO-17s as defence weapon. I believe the goal was to keep fighters at a distance and/or blind them by smoke and light. I think those Dorniers were on the big raid of 15 september. The effect of the new weapon was not that impressive (RAF pilots often thought it were just burning bombers) and I don't think it made some kills back then...
But I think that in the sim it woud come as a real suprise to face a dornier like that. If you play the whole campaign,a player udually has developed a kind of routine tactic for approaching a DO-17. Trying not to end up in a sudden fireball would be a nice and unexpected feature in that mission.
I've only seen some pictures of he-111's and ju-88's equiped with flamethrowers, but it seems that there wasn't much visible of that weapon on the surface of the plane. I think only a small tube was visible, coming out of the tail. So, good news if it should be modelled
To give you an idea how the fireburst looked like, there are some pictures of it at the bottom of this page:
http://www.luftarchiv.de/index.htm?/...te/waffen2.htm