Bunker glitch- teleport to Elysian Island

Inside the bunker, I drove into one of my friends who was standing against the wall by the MOC, and when he stood up, his character was standing through the wall. Once he walked completely through, he instantly spawned on Elysian Island. I've only tried this twice, so I'm not sure if Elysian Island is the only possible place to spawn. This could be helpful to travel across the map instantly if you have a mission and another person playing with you.