Invisible bridge glitch

Requirements

 * Level Delta Halo

How to
Once you begin, jump on the hill with the grunt on the turret, jump up and up till your ontop of the map then go to the bridge area (If thier are enimies around and Regret hologram is on the hologram, you messed up). Walk on the area the bridge would be (if it's there, go inside and unextend, trust me it's posible only when you do this!!) Walk into the void where the bridge would be.