Xian optimised various settings in the both the TacticalOps.ini and User.ini for TacticalOps 3.5 (AOT) as found here: http://www.ese-protect.de/homepage/page.php?id=150 or
http://forums.tactical-ops.to/showthread.php?t=70449 (down)

Since the arrival of ESE, we have had to release version 2 based on the above original files. There are major changes made which the ESE Ini Cleaner rectifys in order to prevent crashes with the cheat protection, however we have gone 1 step further and done this for you.

All of the below Text and Help is by Xian
Changes:
- added a server INI (yes that's right, a default INI to use with love and delight)
- added support for 3d accelerated quadrophonic sound (yup no more buggy audio)
- added support for dolby surround sound gaming (yes, no more position and distance errors)
- added server INI documentation (that's right, you can now know what each important setting does)

For those of you TOO lazy to go through the INI overwriting procedure (the User INI files are unchanged) and reconfiguring TO and the rest of the settings, here are the changes:

For 3D accelerated sound:

Quote

[Galaxy.GalaxyAudioSubsystem]
AmbientFactor=0.300000
DopplerSpeed=35000.000000
EffectsChannels=32
Latency=40
Use3dHardware=True
UseDirectSound=True
UseFilter=False
UseReverb=False
UseSpatial=True
UseStereo=True
UseSurround=False

For surround sound:

Quote

[Galaxy.GalaxyAudioSubsystem]
AmbientFactor=0.300000
DopplerSpeed=55000.000000
EffectsChannels=32
Latency=40
Use3dHardware=False
UseDirectSound=True
UseFilter=False
UseReverb=False
UseSpatial=False
UseStereo=True
UseSurround=True

For those of you that want a 3D Enviroment using headphones, but not 3D Acceleration or surround, use this window setup:

Sound setup: DESKTOP STEREO SPEAKERS (Control Panel -> Sounds and Multimedia -> Advanced for Win 9x/Me/2k, Control Panel -> Sounds and Audio devices for Win XP -> Advanced), Speaker Setup: 2 speakers (on Creative Labs cards: Control Panel -> AudioHQ -> Speakers -> Advanced Mode)
Yes - I am not crazy, you can use 'speaker' settings on headphones

And here is the TO setup...

For those who wish to use 3D enviromental sound:

Quote

[Galaxy.GalaxyAudioSubsystem]
AmbientFactor=0.300000
DopplerSpeed=10000.000000
EffectsChannels=32
Latency=50
Use3dHardware=False
UseDirectSound=True
UseFilter=False
UseReverb=False
UseSpatial=True
UseStereo=True
UseSurround=False

For those of you that don't know what the DopplerSpeed setting does, and how it influences gaming in 3.5 the explanation will come shortly

Chris Doppler was an austrian physicist that discovered something interesting. Well as some of you may know, sound travels in waves, so he noticed that there is a change in the wave frequency as the sound source and the sound listener move. For example, if they move apart, the frequency decreases, while if they'd do the opposite, the frequency increases. What does this have to do with anything ? Simple.
The sound system is now based on distance and position and velocity, instead of the normal 'fixed' system from UT99. This means that a change in position is now influenced by the base doppler speed. What I mean to say is, that a normal default value of 9000 is not fast enough to coordonate the sound frequency for position and distance in a surround enviroment. Increasing it will make the frequencies update faster, thus rendering a more accurate 'feel' of where the enemy is.
Please note that this is some stuff I remembered from physiscs a long time ago so the explanation is not 100% scientific and from the books

Download Ini Files
[pfs]0-tactical_ops_v3.5_ini_files-v2.zip[/pfs]

Hi Kagome
Can you please re-Upload or fix the Download link for the ini files please?