I absolutely love the soviet pack but 2 thing appears to be missing that would make great and accurate addition to this pack: The Lyappa Arm which were equipped on Spektr, Priroda, Kristall, and Kvant-2. They were used to reposition the modules to the central axis port by means of grappling onto the "pivot" points on the MIR core module and rotating 90 degrees. It would make sense to do such as to not waste RCS fuel. Here are some images: http://upload.wikimedia.org/wikipedia/commons/thumb/9/9a/Mir_arm2.JPG/793px-Mir_arm2.JPG http://upload.wikimedia.org/wikipedia/commons/thumb/4/4a/Mir-82.png/830px-Mir-82.png Another feature would be the FSM tug used to bring the Kvant-1 to the station, It is based off of TKS concept (Which ultimately led to the FGB called Zarya for the ISS if I'm correct, please correct me if I'm wrong) More images http://upload.wikimedia.org/wikipedia/commons/thumb/d/db/Kvant_module_and_FSM_drawing.png/500px-Kvant_module_and_FSM_drawing.png I could use Kosmos Pack to construct the FSM but they are all too wildly huge to fit within the proton shroud and vastly heavy. Feel free to look into these suggestion for future addition to your pack!