I take it that Graviteam is laser-focused on reenacting specific engagements at the operational level. And the game does it well, but you guys do seem to have unusual tastes in wargaming.
So what do you want there to be?
1) If realistic, the hundreds pieces of Soviet heavy artillery and mortars demolish all the crap that had built the Germans (1-2 turns), then go assault groups and dispersed those poor souls who have not yet escaped (1 turn).
Further continuation with where anything interesting in those operations that are already in the game.
2) If unrealistic - so we are trying not to do. Especially where is a whole accurate description of the events.
What would it take to get usermade terrains in the game? That would increase the game's value twofold for many people.
This makes no sense. As shown by the previous 5 years, no one would seriously do it, recreation of realistic landscapes it is highly complex process. All who were able to do this are already doing.