My friends Shawn and Jimmy ran the Battle of Grovers Mill. They used basic Flames of War rules and Dan Massey's rules for the aliens. Shawn played lots of test games with the aliens in the months leading up to the con, so he has a pretty good feel for how they play. I'll see if I can get him to come on here and talk about it.
Everyone had a good time and they're planning on doing it again for Cold Wars and then also doing a new Alien Invasion table set 15 years later in Vietnam. They're hooked now.

Chris