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 ----------------------------------------------------------------------------------------- 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" ------------------------------------------------------------------------------------------ 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.