Actually funkedup I asked the question about who could be in a TOD squad early on to daddog and somebody else (maybe skernsk) by private mail. I was told that your squad has to exist in MA but for the TOD squad it can have members in it that are not members in the MA squad. So you don't have to use guest slots if the guy is going to be a permanent flyer.
Right now I have 5 non-Nightmares in MA flying in the squad (1 we are considering recruiting to MA squad, 1 who left our MA squad for the Knights because he didn't like the Rook Homeland, and 3 from our sister squad the Horse Soldiers).
So as funkeup says Axis .. get out there and get guys that you know in and out of your squad in the MA to fly for your TOD squad.
This event is much more fun when both sides have almost equal numbers and we have a lot of planes in the air.