Went to cia blacksite no zombies, checked coding zombies set to spawn there, increased number of zombies plus added extra spawns, I expected to find zombies, there were absolutely none whatsoever except ones at tents by entrance to subterranean torture rooms, zombies and dogs are aggroing as you can hear them but they are below the mesh of the terrain, clearly an issue with ai spawns snapping to terrain but because of terrain cutouts with new terrain hole tools they are spawning in the void