Developers of the STALKER: BELARUS modification with some answers to fan questions.
Why are there no materials demonstrating what has been done to modify it over a long period of time? It turns out that the authors do not want to show new mechanics made for Belarus, because... this will kill the whole “wow” effect when the next update comes out. Why know everything in advance? So it's not interesting.
This is precisely the reason that mod makers now show only renders of 3D models created for modification. But, apparently, the developers still have a conscience and they understand that everyone wants bread and circuses, and in general it’s not nice to do that. Therefore, in the near future there will be a demonstration of new or modified old mechanics. The authors will select a few not very important, but interesting features, and leak information about them. In the meantime, the old fashioned way - fresh renderings.
Review of STALKER mods - VKontakte