tell of ones you know
i only know of 1
at battle hall in a 1 on 1 game, the corner hall by the jump pad and health or whatever
if you have the magmaul charge it up all the way and shoot the ground while jumping
youll fly back into the wall
but be careful not to go too far back
you can fall off
so shoot the ground next to where you wanna walk
if it stops you can walk