Good day,
From time to time player of Prarie Fire can see this picture in SOG maps.
This can happen more often in densely planted areas of maps, where the simple solution would be to widen the areas between the planted plants.
No need to program the AI and no need to remove collision for such objects, all that is needed is to reduce the density of such plants!
Please heal the densely planted areas of the SOG maps, in any way convenient for you, so that the AI units (infantry) are able to advance without the slightest problem.