The first path up to the next "layer" is impossible I'm pretty sure.
That arrow on the top is way to close to the ground. Like I've said before. In the map editor the arrows may look small but when you stick them ingame and test it it's a whole new thing. Keep in mind the path that the arrows travel in. You want to have it mildy long because they aren't going super slow. And take note of the arrow length. When arrows move down they move faster. So something like what you have on top would be impossible at the speed your character moves.
I'm pretty sure you can skip that thing by the exit just by dropping down. Not sure.
Subject: The Vault 
