Kill Creek Rock Glitch
Great for glitchers and awesome for quarantine region.
When you start go to bottom platform which is under stairs and go to rope until you get in middle of both of them, look at the rock, and press ctrl, (crouch), and you will end up going into the rock on a ledge.
P.S. you may have to do it more than once and if you mess up you will glitch out of map falling in air and die in a few seconds
P.S.S. it still is working, i tried it and still works
Coming Soon- many other glitches for different maps on Combat Arms