I hope you don't mind entertaining a question from a new guy/ksp novice. I posted something similar in a thread more directly related to OLDD's models, but I'm not sure that thread is still active. Here's the thing: I'm trying to assemble OLDD's Proton. I have a working Proton-M, but I'm unable (so far) to finish assembling the ZOND. The issue has to do with adding the ZOND escape tower - there is no means (attachment points) by which to fix it to the ZOND payload shroud. So far my payload bay is empty. Is this the issue? Do I need to load a payload in order for the escape tower to find an attachment point? What I really want to do is launch one of these (Salyut, Soyuz, etc.) models using OLDD's Proton. Although I haven't gotten that far yet, here's another question: How do I get the station into the payload bay? Is it simply a matter of assembling those parts above the launch vehicle before adding the shroud? So far, I have not added any payload(s) to any launch vehicle(s). In any case, many thanks to those of you making these models and generously sharing. I'm having a good time (and, it turns out, blowing up a bunch of stuff in the process). Peace, cs