Espionage Part I - Recap

Played through the first half of an Espionage mission, and it went pretty well.  The narrative scenes in the Espionage missions revolve around the planning of the mission.  Figuring out what sort of security is in place, who has access to the target, and weaknesses or vulnerabilities.

The narrative scenes in Espionage are slightly different from other missions, in that the obstacles resolved in the first scene turn into the obstacles to resolve in the second scene.

For instance, the first scene may have an obstacle such as "What does the guard force consist of?" - and, as the stress boxes are checked off on this obstacle, new obstacles are created.  Such as "guard dogs" and "night watchman".  These are investigated in more detail in the second narrative scene.

This seems to work fairly well, although it is a departure from how the other narrative scenes work, which isn't usually desirable.  It could also be handy to have some lists at hand to help fill in details, since this isn't really done beforehand.  Or, maybe that's the role of the GM before play begins?