in a rare case it might help..its always a good thing to update em regardless of DOD
things that will lower ur ping:
a better bandwidth/better ISP
a faster computer
a better (more gooder) Video card
disabling applications u dont need while u play (*.exes,torrents,msn,etc) from the task manager..it'll help a lil bit..BE CAREFUL NOT TO SHUT DOWN EXPLORER.EXE / SPOOLS / svhost OR STEAM
cuttin down on the porn download COULD HELP A LOT