It appears to me that the 'secret' in this less than usual application of the light gun is indeed in the fact that is used in the direct fire role. A job that yesterdays 106 kickless canon may have been equally capable of (with a modern sight)....
The range is also well within the capability of the 81 mm mortar. But the mortar, with its high trajectory, would not have the guaranteed first shot accuracy of this gun (the article mentions firing at individual targets). I suppose a mortar can at best only fire 'semi direct'.
Bookmarks