I've just added an add-in called Hook Mod to my CS and CZ servers, so when you play on these (like on Tuesday and Friday nights), bind a key to +hook (eg. bind capslock +hook) and hold it down to fire a grappling hook and then climb up the rope - it's hilarious!!!
BTW, the server for Friday Night currently is my little bot server: williweb.mine.nu:27015.
Thanks to FatalCure for giving me the details of hook mod
Lego - I tried adding a News item on the zero home page about this, but it didn't appear to stick when I hit save