I collected some opinions from other places. Now I will sort out some of them.
Add “reconnaissance” command (with cooling time). After sending the command, AI attempts to mark the enemy. The marks are only visible in the team, and the number is limited. They are displayed in another color;
Add tactical instructions so that the team can mine at a specific location;
Let AI try to spread out in the trenches in a concealed way instead of walking back and forth in the trenches or other bunkers, and no longer go in and out of smaller houses frequently (don’t expose the target!)
Allow AI to use panzerfaust and piat;
Realize more tank machine gun (around and behind the turret!) Let AI control them (you can control whether to fire or not, if you want to sneak forward)