1:Jump on the barrels in the back spawn of the map. From there you must jump on a small air vent then which leads to you jumping up a window.

2: Go to the farthest window to the left, as you jump in you must back up as much as you can so you can get the best possible jump.

3: Sprint and Crouch Jump up on to the pillar. You have done the glitch! This make multiple tries so don't give up if you don't get it 1st try!