fresh&minty being a whiny m0 again I take it?
I'm pretty sure there was a major Quake 3 game (possibly CPL, I'm not 100% sure), that involved a dud shot which would have won the player the match. Not too sure, but it was definitly Quake3, and it definitly involved a dud shot. I don't play Quake3, but I know from people who do that you can get dud shots in the Quake series as well. They're less common than in UT, but they do happen.
As for the netcode, as long as it's stable and it works, then it's all good in my book.