I can't believe I have been denied this for so long. I wonder if there will be some grapple CTF servers around? PQL CTF and Grapple, oh sounds good :)

weapon 10 = grapple / hook

Simple grapple demo below, on Skyward CTF for those who might want to see what its all about:

Other sample QL CTF grapple videos

Locally played demo below, on Spider Crossings, PQLCTF with grapple 4 v 1:

Or this fun Overbounce:

QuakeLive Grapple is too slow. QuakeWorld was much better speed and drag. Quake Champions Athena seems to work well, but slightly over powered.