I have a little idea here, regarding the simulation of PU-12 command post. Normally, it would issue target designations to its subordinating SAMs and ZSUs by the voice via radio. As simulating this would be too cumbersome for SAM Sim, I was thinking about issuing them in text form. At plotting board you would select the desired target as you do now with IADS, but instead of automatic traget designation, you would receive guidance in text form, something like "azimuth 270, distance 32, altitude 6", with the same interval as with the real PU-12. I think this would be interesting.