Also if we want to do Bastogne instead of the Lorraine, there is already someone putting together a Firestorm: Bastogne campaign.
http://forum.wwpd.net/viewtopic.php?f=48&t=20168
We can even participate in their campaign, and then we don't have to worry about the admin of the system, simply fight battles!
Edit: Although they are starting this week, and will go for 6 weeks, so I'm not sure that fits with our time table...