well i start on the helipad, i see the guy moving its arm, but no sound,(i know he screams something i saw it on youtube) then i enter the building the dude on my back will move as he does but the two folks on the table wont even say hi, they do the same sketch(move arms like planning) my team( the guys in black) one of them would move lips not saying something hearable the other wont move, i saw the white dressed dude with the other would brief me, well that happens, i dont hear voices, only footsteps, and ladscape sounds, any ideas. i tried with a friends copy and wont work ither, my sound card is a sound blaster audigy SE using latest driver which makes it be named as a sound blaster live 24 bit. i have the OB sound card but dont want to enable since i have to disable the creative blah blah if this is the only plz. thanks

Hey glamdrop,
Without seeing your system, it could be many things.
I will guess at a few!

I have an old Audigy 2 ZS Gamer in one of my systems and it shows up as such.
Yours should show up as Audigy, not Live!

First it appears that you may have the incorrect drivers installed.
Here are drivers for Audigy:
http://us.creative.com/support/downloads/download2.asp?...=1&OSName=Windows+XP

Drivers for Live:
http://us.creative.com/support/downloads/download2.asp?...=1&OSName=Windows+XP

Be sure to uninstall old drivers before installing new ones!

In options, make sure that voice volume is set to "10"

Setup a CO-OP LAN server and try different maps.
You will be able to play the game with no one else connected, and that will determine if it is a problem with the entire game.

In control panel, sounds and audio devices ..under both audio and voice tabs, make sure your card is selected in the drop down boxes!

Hope this helps, but it really sounds like incorrect drivers.
Start there first!