Can't embed the high quality version, so just click the link. Enjoy! YouTube - Call of Duty 5 Asylum Greenhouse Glitch EDIT: I actually figured out a way with no rockets. Not gonna bother filming it, it's super easy. Just go to that gate, stand on the balcony, and face the gate so that you're perpendicular to it. Back up until you feel yourself drop down a little, then push A. It automatically climbs you up. Although, I think it's faster with rockets.