I've been trying to do this, and I was able to test and get my vehicles all up there, but when I tryed making the player spawns to those coordinates... it went REALLY weird. I might have spawned myself within the canyon, I don't know, but... weird. I'll get a picture.
All I see is the sky, I can't move, shoot or melee, but I can look around.
The co-ordinates I tryed was X = -190 Y = 25. I left the Z co-ordinate the same. It worked fine for the vehicles, and not my player spawns, any ideas?