Units can detect and shoot enemies through obstacles

I noticed an issue where friendly units can sometimes detect and attack enemies through solid obstacles, even when there is no direct line of sight between them.

Obstacles should block both line of sight and attacks, but units can still detect enemies and fire at them through the obstacle.

Expected behavior:
Solid obstacles should block line of sight. Units should not be able to detect or attack enemies through obstacles when there is no clear line of sight.

Actual behavior:
Units can sometimes detect enemies and shoot at them through solid obstacles. For example, I observed a situation where a shot went directly through a rock, even though the rock completely blocked the line of sight between the unit and the target.

This gives units an unintended tactical advantage and makes taking cover less effective.