[Wookie]

Hey, I know I shouldn't be asking this but it seems that majority of the MOH community knows this ladder Glitch on V2 so what heck, I might as well try to find out how this is done too. I watch people on the MOHEAST 9 server do it all the time but I just cant seem to catch on to what they are doing. All I see is them jumping on the ladder then they bounce off, then they are somewhat under the map. Can someone please explain to me how it is done? Thanks