The returnshuttles-0.5b.zip file you have requested: The Outdated Abyss / Return Shuttles - 266.02kb is not available. Perhaps try browsing all files for the game Star Trek: Bridge Commander and upload any files you want to share or are missing. This is the only information we could locate:
Here is the latest version of the Return Shuttles script, created by Defiant. It will allow you to tractor in shuttles that you have launched. Enjoy!