Dvina! bump Do you see any challenges with Dvina development having the Wolkhov already more or less complete? Does it differ in anything other than stripping Volkhov of some of its options? (I mean the game, not the system...)

The graphic, and the manual should be completely redone.
The 11D missile is less agile, and the SNR is much weaker.
I do not see big challenges, so probably it could also be done this year.

One about manual tracking (in fact, those guys occupy the most of the room!). Does the real auto-tracking in S-75 and S-125 have the capabilities you modelled in the game? Or you "assume" the presence of ideally trained manual trackers that help the player? Where are the limits?

Against non jamming target, the auto-track has good capabilities in the real system.
When the target can be seen under the jamming, or it is tracked by the TV, than manual tracking come into play.