The Snake Reincarnate (Acts 1 and 2 are done; Act 3 forthcoming)
You are sent to a Cardassian system on a routine science assignment. But what you find could shake the Cardassian/Federation peace treaty to its core. Spoiler: The Obsidian order is back and threatens to use an unorthodox weapon.
Edit: I published what I have done. THIS IS A WORK IN PROGRESS! Act 1 is done. I may make a few placement tweaks, but otherwise it is finished. Act 2 is finished in concept and design. I may still change its map. You don't have access to Act 3; mission ends at end of Act 2.