The Australian 9th division was fighting Vichy Foreign legion in Lebanon in 1940.
Don't you mean the 6th or 7th AIF Division? The 9th didn't took part in the Syria/Lebanon campaign (
Operation Exporter) because it wasn't fully operational at the time, although some elements were indeed transfered to 7th AIF Division for that campaign. But aside from the 9th Cavarly regiment which was returned, the others weren't.
I'm quite fond of the 9th IAF Division myself (up to modeling it in miniatures) because, aside from its military feats on all theaters, it might be the Allied divisions which made the most use of enemy equipment:
* they used French R-35 from the Syria garrison.
* since most of its heavy equipment was sent in Greece for that fateful expedition, it was left bare. British command therefore decided that serviceable captured Italian equipment would be given in priority to that division: 9th AIF ended up being equipped with Italian trucks, Italian 47mm AT & 20mm AA gun, including portee version.
* after the capture of Bengazi, they even organize an armoured unit with captured M11 & M13 Italian tanks.
They are a dream for miniature painters/modelers!
Regarding combats in Lebanon, they were indeed quite violent, although very seldom spoken of. The Australians, whom supported the brunt of the combats were told not to talk about it not to irritate the French (and thus the 6th AIF earned its nicknamed "Silent Division", because it could speak of its actions), while in France it is still quite a taboo that (Free) French fought other (Vichy) French.
In one incident, Légionnaires on each side started fighting each others, until someone recognize the other for what they were. A bugler immediatly played the
Boudin (Légion's anthem) which was replied in the same fashion from the other side. Combats immediatly ceased, for the Légionnaires' code of honor forbade that they do harm to each others. And so the best troops on each side dug in face to face without ever firing another shot at each other.
Vichy France were also the opposition to Torch in 1942.
During
Torch, it is true that there were some bitter fightings, especially in Morocco, while in Algeria it was quite feeble and the (French) XIX. Corps immeditaly rushed ahead of the Allies toward the Tunisian border to prevent Italian-German incursion.
So, Vichy troops reaction varied a lot, depending of how much their leaders were faithful to Pétain or in ties with the Résistance, aware of the landing or not. To sum up, French authorities & troops in Morroco fought back as much they could, coastal troops in Algeria didn't know what to do while the core of the professional Arméee d'Afrique, the XIX. Corps, was axare and ready for the Allied landing and immeditaly sided with the Allies (or to be more true, against Axis).
Regarding combats involving Vichy troops, you have:
* Dakar (Vichy vs. Free French + Royal Navy = Vichy victory)
* Syria/Lebanon (Vichy vs. British, Australian & Free French = Allied victory)
* Madagascar (Vichy vs. Commonwealth = Commonwealth victory)
* Algeria/Morocco (Vichy vs. British & Americans + Resistance coups in Algiers & Rabbat = Allied victory ... for we ended up all being Allies

)
As far as future DLCs go, Eritrea and Burma would both be major departures from the usual WWII model.
i've already said in another thread that, as far as I'm concerned, I would love a Burma seting, especially the battle of Imphal, since it provides a setting for an unsual high amount of armors on both side on this theater.
Plus Chindits, Merryl's Marauders, Indian troops on both sides, ...
