Some people have noticed that when they play on Sandbox, they don't spawn on respawn points. Despite respawn points being placed, and teams settings changed, they will still spawn in odd locations. In retrospect, the reason for this is pretty obvious. Its the start points. If you're spawning on places where you shouldn't, simply change the gametype, and delete the start points. You should now be able to spawn in the locations dictated by your respawn points.