Hey, I’ve got a good spot for you. Check the old Platform 7 tunnel. There’s a long straight stretch for sprints, then a collapsed stairwell that turns into a natural obstacle course. The ventilation shafts are great for quick turns, but watch for loose wiring—those can snap under pressure. I’ve got the schematic on three old drives, so I can send you a copy if you want to scout it in detail. Just remember, any vending machine you find there is probably just a surveillance loop, not a snack bar. Good luck staying ahead.