By using parry to exit Ava form, you can force yourself out of the map if you're inside of a vent aperture. After you do this, you can run on the geometry under the map, and then drop off the bottom of the hitbox and teleport into whatever part of the map you're directly beneath. In testing, I've been able to use this to teleport into midboss pit while charging a melee (very tricky timing), as well as teleport directly onto an urn drop spot. Not easy to do, but feels like it should probably not be a thing.