in "defense" tutorial all units are marked in the colour red as arrived. They may not be moved. Does that not somewhat remove the purpose of the defensive tutorial? That could be a bug?
Yes, this is a bug caused by the problem of docking scripts for training missions and deployment phase. Will be fixed in the next update.
I understand the problem, how to transition units from operational to tactical. Attacking units may not always get a chance to setup, especially when ambushed. How to translate that easy qualitative idea to a quantitative algorithm?
This is the rule of the game. If you did not move in the unfolded formation, and got into battle, you can’t move. There is no quantitative element at all. Binary split only.
Likewise, experimentation is fine, but why should i start a 25 turn campaign when at any instant the game may change significantly or worse, wont load my past save game? Putting changes options could allow continuity. Of course game rule option should not prevent the loading of a prior game.
This is a complex philosophical question akin to taking an umbrella or not, if there are clouds in the sky. I have no answer to it.
The game does not break the operational saves, so all that you can lost when updating this is tactical savegame, if you have not completed it. I do not think that this is a global problem.