If you find yourself frequently locking up during play, weapons changing/firing/dropping randomly etc etc, then do this to stop it.
Once it starts to occur press TAB (or whatever key you have assigned to scoreboard).
It should cancel it imediately and you can carry on playing.
I've stated this 2 times on posts regarding this bug, but wanted to post it on a whole new topic as I seem to be the only person on this board who knows this.
So, if you experience weird 'lag' that messes with your weapons and controls press TAB to cancel it.
Hope this helps until 2015 fix it.
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[This message has been edited by Ydiss (edited February 26, 2002).]