Hello, I reported back this issue time ago and it was catalogued inside another kind of bug in which the AI was shooting through terrain deco (this was fixed). But this is another kind of bug, please do not move this inside the aforementioned thread because it is a different issue. I include here a zip file with the bug happening: https://drive.google.com/file/d/1sEDtllGC_1Xdn-6c_2GWkMspYU90ctLO/view?usp=sharing Basicly, and just as I informed back then, if you drill a tunnel towards a drone base POI, you will be shoot by the AI through the ground, even when you should not be detected. If this is not reproducible at your end, I do not understand that is going on, because it is happening to me every time.
I had this happen to me in A12. We drilled a tunnel to a drone base and all the drones began to shoot us. We could see the tracers going through the ground but we took no damage. Eventually the drones actually destroyed the core of their own drone base while we were under it.
Thanks for setting up the save where it happens for you I managed to trigger it & will have this looked into.