Increase Volume When Shifting Bind
This simple bind increases the volume of the game when you press the shift button. That way it will be easier to listen to sound cues when you are trying to be sneaky.
alias +shiftVol "incrementvar volume 0 1 0.5;+speed"
alias -shiftVol "incrementvar volume 0 1 -0.5;-speed"
bind shift +shiftVol