"Let me try to explain it a bit better, I played a coop game, got a vtol and somehow glitched trough the barrier, i flew high above it until i saw the city started to glitch, on that point another city appeared to me in the sea, i hovered down and landed on the road, the grass was just a texture but buildings and roads were solid, i asked my friend to come over to see where is was, he did managed to find me however he did not see anything, from his point of view i was just standing (walking) under the sea with the Vtol next to me."