[maple_leaf_eh]

The own-fire bombing that was the worst was in early Aug during the battles immediately before Falaise. There was a mass-casualty event on the bivouac areas where the RCE mapping units happened to be concentrated, and there were 10 or 12 specialists killed. Their losses slowed the war effort.

The second possibility could be a radio deception unit run by the British. One Facebook group I'm in specializes in M3 Scout Cars, and they had a link up for this group. Not many non-Americans used Scout Cars in Normandy.