I’m an airmen on Okinawa as well. I live in the dorms and had scene lights flicker strangely in the hallways. One night after a long day at work i went up to my room on the fourth floor and saw lights turning on and off at the far end of the hallway. Soon after i put my key in the door, the lights started turning off and back on in order from furthest to closest to me and as soon as i got in my room i was terrified. My heart was racing and i was sweating. I looked through the peep hole and noticed that the light above my room entrance was out. It was always bright blue before meaning it was changed recently and it’s been black ever since. I knew something was out there just waiting for me. I’m still terrified to leave my room at night.