1. In the squad data, the last squad of a platoon allways has a plane icon. What does it mean?
This slot is available for air spotter. It's count per paltoon is limited to one spotter.
2. The new fire to infantry and fire to planes buttons. If I understand correctly if the botton is red then the unit does not shoot on planes/infantry. If it is not red the the unit does shoot. Is this correct?
It's blocks not a buttons. Work like fire block. If it checked (in red) fier to infantry or airplanes is blocked