
The attached image is the screen players use to issue orders to attack a hex.
I encourage you to watch this video from the timestamp.
https://youtu.be/Yarym5qkZRg?t=3270
The player's tactical situation notwithstanding, the UI and selecting attacking units from the "eligible units" box is causing them confusion.
I recommend a modification to this window that helps players learn from their unit selections in a more apparent way.
The information is there, but I've seen this happen with other more wargame-focused marketing influencers as well. It isn't just this player's knowledge and attention. The shifting odds become a source of frustration for this player and others.
I'm not sure some players realize that units can be selected from the center hexagonal strip-map. I've never touched the UI, but I have played other wargames that use almost identical layouts. Stacking, combat width, force ratios all matter here. Icons with numbers are provided in the two “mods” areas. Maybe change that text to read "... Odds Modifications" instead of just "... mods".
Perhaps making those mod numbers 'pop' in a way that shows the player how the estimate is changing them as selections are made.
As far as I can tell, some of those small icons and numbers in the mod sections are exclusive to this attack window. Players may not actually be familiar with their meaning. Some are very close to other icons used elsewhere with the sigma (i.e. sum) symbol. I know what that means, but in the heat of the moment, players may miss the visual cues as they are now.
The color used for malus numbers in the mods sections is also muted against the background color.
Maybe players should not select units from the “eligible units” box. It might force them to consider the geographic circumstances and other factors.
As I recommended elsewhere, instead of simply providing average values, it would be better to give the player a confidence interval based on your recon rules.
Finally, you will notice in the video that the UI begins to fail given the space and number of counters involved. You may want to provide some fallback for "many" more unit counters.
There are many different ways this could be improved, however, I do believe the current UI isn’t working as well as it could for players.

