1. In mission editor, start a new mission. Place the player as any soldier, and a subordinate AI soldier anywhere on the map.
2. Preview mission.
3. Pause mission. In debug console, execute the line below:
{_x setpos [7320,7327,0]; _x setdir 48;} foreach (units group player);
4. Unpause. Move forward, through either gap in the fence.
5. Observe subordinate AI get stuck on other side.
6. Feel bad for AI.