Here is a link that will show a Piper L-4 directing artillery fire during the battle of Monte Cassino. You can see Mt. Rotundo on the east side of the valley with the Abbey located on the west mountain ridge. The layout of the missions matches the actual terrain very well.
http://www.criticalpast.com/video/6...-soldiers_soldiers-firing-guns_plane-hovering
The 105 mm artillery are firing both HE and WP rounds and they can be seen impacting below the L-4 as he traverses the front line at low altitude.
O-1
http://www.criticalpast.com/video/6...-soldiers_soldiers-firing-guns_plane-hovering
The 105 mm artillery are firing both HE and WP rounds and they can be seen impacting below the L-4 as he traverses the front line at low altitude.
O-1