Space Shuttle Missions with SpaceHAB Single and Double Modules. Requires the entire shuttle fleet, Kev Shanow's LC-39 v8 high-res add-on, and orbiterfan's SpaceHAB Single Module add-on.
PLEASE NOTE: This add-on is for the Shuttle Fleet 3.9.1 (or older) ONLY! Version 3.9.2 will not work because it uses the all-around Shuttle.cfg file, rather than separate .cfg files.