Direct yourself to
c > Program Files > Atari > ArmA > Dta > ACE
open ace_clientside_config.hpp as a text file
Find ACE_OVERRIDE_BIS_SOUNDS
Delete the line "#define ACE_OVERRIDe_BIS_SOUNDS" which should be under the following.
/*
ACE_OVERRIDE_BIS_SOUNDS
When defined, ACE sounds are used for default arma classes
When undefined (commented out), Default ArmA sounds are used for default arma classes, meaning they can be freely overriden by soundmods
*/
Save and close
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To enable the big tracers, in the same folder as the ace_clientside_config.hpp open
ACE_Tracers.hpp
Delete the line "#define ACE_TracersSP" found at the top of the document, under the line
"// Uncomment the following line to Enable SP configuration"
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Right click your shortcut of choice and click properties
Target should look like this, adjusting for your specific locations obviously
"C:\Program Files\Atari\ArmA\arma.exe" -nosplash -mod=@FROMZ;@ACE
FROMZ NEEDS to be first, what this does is load FROMZ first, then ACE, allowing ACE to override anything it needs to and causing errors.