How do u airwalk in syphon filter dark mirror

[VaLcOrN]

-Get some m67 grenades and a Zipline. goto the roof where you get the DSC_1_Thermal sniper. find a place where you can deploy a zipline. stand under that spot and throw an M67 grenade at you feet. When you see a white screen and you are blind, deploy the zipline and walk forwards. You will be floating in mid-air. If you run into a wall, you will become invisible, and your bullet sounds will become silent.