I'm not pulling a Dr.Disrespect here but I'd say it's a problem when enemy footsteps that are a floor above you sounds as if the fucking guys are performing an Irish Step Dance Routine 2 feet away from you. Ministry parking garage is the worst. You can't tell where they are coming from in whatever direction, could sound like a boy band of insurgents are sprinting or tumbling down a stairwell in front of you but in fact they are running down the stairwell behind you. Some.....or most occasions I've had a ninja sprint up behind me with a knife and I couldn't hear him even if he was playing paddiecake with a battle buddy while being close enough to breathe down fucking my neck or whisper sweet nothings in my ear but instead of whispering it's more like a Chester Bennington scream (RIP🙁) but i still wouldnt be able to tell. Good times......good times indeed.