When using AI spawning modules that garrison buildings the AI can spawn inside the Bocage hedgerows as it has a building placement position for the AI.
Because of the Armor value of the Bocage foliage you can't kill this AI whilst they can shoot out.
The hand holding the rifle is the only weakspot when the AI is in combat position, a workaround is to use hideobject on all the mound objects so the AI fall down a bit and their feet become weakpoints aswel