This is a re-post from the old forums of an idea I had a while back. Basically this is just a big box-like module you can fit into an RSI Constellation. It's a little like the Retaliatior modules (drop ship, living, cargo, etc). This was designed around the Constellation MK3 before the ship was in game. Part of the idea is that one of these could be "rolled off" and become a temporary planetary base, or even an orbital base. With a module like this a Constellation class ship could be turned into a more capable exploration ship, or a personnel transport. I realize that the "upper deck" (stacking) idea may not work as well, but it's an interesting idea to use that "wasted" space in the Constellation hold.