I play with one other friend, if you would like to join just let me know.
We don't do much, occasionally I'll run a full on mission but for the most part we just run a freeflight mission and lob missiles at eachother with invincibility on or whatever. And unfortunately we don't get much time to fly anyway, just a couple hours over the weekends.
If you do want to join you'll have to remind me to add a couple more planes.