Posted May 10, 2011

It's generalizable too - enemies can climb up things to get to you, but if the surface is small enough they can't get up there with you. Lamps may work, as NPCs sometimes hop up on them and stay a while. The key trick is holding "walk" at all times, otherwise any action may make you fall off.
(NPCs also have surprisingly good path-searching - I tried sniping at someone from a roof once and he went about 100 feet away to climb on a smaller roof, then ran across to me. So make sure there's not an alternate, easy path!)