Morningstar is a beautiful, beautiful module, in both aesthetic and theme.
The writing immediately draws you into Prague and it's clandestine side. Using randomized tables the details of the mission are decided. Is Morningstar a foe or possible ally, and what are they trying to achieve? After that is decided your team can immediately drop into the maps provided and get to doing what agents do.
If you are someone who needs a little more guidance from your modules, you might have to challenge yourself a bit because the mission leaves a bit for you to create on the fly, but the multiple varibles of the mission creates great replayability and I have a feeling that I will want to revisit Prague multiple times.