I did a little more experimentation and found a way to eliminate the need for Fade Step to get over the corner of the invisible wall. Now it just takes an easy slingshot and is easily repeatable. I made a vid that shows how. It's critical to get the positioning of the Tactical waypoint just right, or else you go slingshot to a random spot. One time I got into an infinite slingshot loop that went straight up high over the map, screens after the vid.
Sceenshots of the slingshot loop:
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Sceenshots of the slingshot loop:
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