1. On Ascension, go to the small sniper tower and stand like you are going to run up it.
2. Instead of running up like normal, jump on the rail/ledge to your right, and run up as far as you can.
3. Part of the tower is in front of you now, stopping you from moving forward. Crouch and walk into the tower. You won’t be going anywhere, but keep holding crouch and forward.
4. Let go of crouch, but continue to hold forward. Even though you let go of crouch, you should still be crouched. This is because the angle of the tower is preventing you from standing up.
5. Now stop holding forward. Press "A" to jump, but don’t move your joystick. You should automatically hop away from the top of the tower a little bit.
6. Look towards where the sniper spawns. There is a pillar type thing sticking up. You need to jump and land on that. When you land, make sure you aren’t holding forward or pressing any buttons.