Ok...
I played it saturday since I was there for OneShot and discovery of the system I made strong starting point that is PC are tasked to retrieve the zip disk and deliver it to DIA mentor in Krakow straight out of the debacle of Kalisz.
They were on foot and suppose to get a vehicle from a DIA cache further on.
They got to the prison past some encounter... and presented themselves. They didn't fit and had to deal with a GRU operative looking for the same thing.
In the end, the place was stormed by a soviet unit on standbye who moved when the mole failed to report (the PC killed him) and in the ensuing chaos the PC managed to get an hand on the ZIP disk from the cold hand of traitor Cutler.
4-5 hour of play, I had to simplify things yet some good scene (one of the PC eat by his own will some poison pills retrieve in the mole pocket to assert his good faith...

he tought it was energy pills, etc.)...
Good Game with opportunity of good Roleplaying,