yes its possible
open up sounds.xml and search for auger.
change the sound volume from 11 to like 3. do the same for the chainsaw. save and load your game
one time I modded chickens to scream like scouts

and dropped some in friends bases. they were panicing and couldn't find the screamers
look below, just change the volume and you will get what you want
<!-- Auger -->
<SoundDataNode name="auger_empty"> <AudioSource name="Sounds/AudioSource_Interact"/>
<Noise ID="2" range="7"
volume="11" time="4" muffled_when_crouched="0.5"/>
<AudioClip ClipName="Sounds/Weapons/Motorized/Auger/auger_empty"/>
<LocalCrouchVolumeScale name="0.5"/> <CrouchNoiseScale name="1"/> <NoiseScale name="1"/> <MaxVoices name="2"/> <MaxRepeatRate name="0.01"/> </SoundDataNode>
<SoundDataNode name="auger_equip"> <AudioSource name="Sounds/AudioSource_Interact"/>
<AudioClip ClipName="Sounds/Weapons/Motorized/Auger/auger_equip"/>
<LocalCrouchVolumeScale name="1"/> <CrouchNoiseScale name="1"/> <NoiseScale name="1"/> <MaxVoices name="2"/> <MaxRepeatRate name="0.01"/> </SoundDataNode>
<SoundDataNode name="Auger_Idle">
<Noise ID="3" range="14"
volume="16" time="3" muffled_when_crouched="0.65" heat_map_strength="0.05" heat_map_time="60"/>
<AudioClip ClipName="Sounds/Weapons/Motorized/Auger/auger_idle" AudioSourceName="Sounds/Weapons/Motorized/Auger/AugerAudioSourceLoop"/>
<LocalCrouchVolumeScale name="1"/> <CrouchNoiseScale name="1"/> <NoiseScale name="1"/> <MaxVoices name="2"/> <MaxRepeatRate name="0.01"/> </SoundDataNode>
<SoundDataNode name="Auger_Reload">
<Noise ID="2" range="7"
volume="11" time="4" muffled_when_crouched="0.5"/>
<AudioClip ClipName="Sounds/Weapons/Motorized/Auger/Auger_Reload" AudioSourceName="Sounds/Weapons/Motorized/Auger/AugerAudioSource"/>
<LocalCrouchVolumeScale name="0.5"/> <CrouchNoiseScale name="1"/> <NoiseScale name="1"/> <MaxVoices name="2"/> <MaxRepeatRate name="0.01"/> </SoundDataNode>
<SoundDataNode name="Auger_Fire_Start"> <AudioSource name="Sounds/Weapons/Motorized/Auger/AugerAudioSource"/>
<Noise ID="4" range="25"
volume="20" time="2" heat_map_strength="0.2" heat_map_time="90"/>
<Sequence/>
<AudioClip ClipName="Sounds/Weapons/Motorized/Auger/Auger_Fire_Start"/>
<AudioClip ClipName="Sounds/Weapons/Motorized/Auger/auger_fire_lp" Loop="true"/>
<AudioClip ClipName="Sounds/Weapons/Motorized/Auger/auger_fire_end"/>
<LocalCrouchVolumeScale name="1"/> <CrouchNoiseScale name="1"/> <NoiseScale name="1"/> <MaxVoices name="3"/> <MaxRepeatRate name="0.01"/> </SoundDataNode>
<!-- Chainsaw -->
<SoundDataNode name="chainsaw_empty"> <AudioSource name="Sounds/AudioSource_Interact"/>
<Noise ID="2" range="7"
volume="11" time="4" muffled_when_crouched="0.5"/>
<AudioClip ClipName="Sounds/Weapons/Motorized/Chainsaw/chainsaw_empty"/>
<LocalCrouchVolumeScale name="0.5"/> <CrouchNoiseScale name="1"/> <NoiseScale name="1"/> <MaxVoices name="2"/> <MaxRepeatRate name="0.01"/> </SoundDataNode>
<SoundDataNode name="chainsaw_equip"> <AudioSource name="Sounds/AudioSource_Interact"/>
<AudioClip ClipName="Sounds/Weapons/Motorized/Chainsaw/chainsaw_equip"/>
<LocalCrouchVolumeScale name="0.5"/> <CrouchNoiseScale name="1"/> <NoiseScale name="1"/> <MaxVoices name="2"/> <MaxRepeatRate name="0.01"/> </SoundDataNode>
<SoundDataNode name="chainsaw_idle">
<Noise ID="3" range="14"
volume="16" time="3" muffled_when_crouched="0.65" heat_map_strength="0.05" heat_map_time="60"/>
<AudioClip ClipName="Sounds/Weapons/Motorized/Chainsaw/chainsaw_idle" AudioSourceName="Sounds/Weapons/Motorized/Auger/AugerAudioSourceLoop"/>
<LocalCrouchVolumeScale name="1"/> <CrouchNoiseScale name="1"/> <NoiseScale name="1"/> <MaxVoices name="2"/> <MaxRepeatRate name="0.01"/> </SoundDataNode>
<SoundDataNode name="chainsaw_fire_start"> <AudioSource name="Sounds/Weapons/Motorized/Auger/AugerAudioSource"/> <NetworkAudioSource name="Sounds/AudioSource_WeaponFire_Network"/>
<Noise ID="4" range="25"
volume="20" time="2" heat_map_strength="0.2" heat_map_time="90"/>
<Sequence/>
<AudioClip ClipName="Sounds/Weapons/Motorized/Chainsaw/chainsaw_fire_start"/>
<AudioClip ClipName="Sounds/Weapons/Motorized/Chainsaw/chainsaw_fire_lp" Loop="true"/>
<AudioClip ClipName="Sounds/Weapons/Motorized/Chainsaw/chainsaw_fire_end"/>
<LocalCrouchVolumeScale name="1"/> <CrouchNoiseScale name="1"/> <NoiseScale name="1"/> <MaxVoices name="3"/> <MaxRepeatRate name="0.01"/> </SoundDataNode>
<SoundDataNode name="chainsaw_fire_rev"> <AudioSource name="Sounds/Weapons/Motorized/Auger/AugerAudioSource"/> <NetworkAudioSource name="Sounds/AudioSource_WeaponFire_Network"/>
<Noise ID="4" range="25"
volume="20" time="2" heat_map_strength="0.2" heat_map_time="90"/>
<AudioClip ClipName="Sounds/Weapons/Motorized/Chainsaw/chainsaw_fire_rev1"/>
<AudioClip ClipName="Sounds/Weapons/Motorized/Chainsaw/chainsaw_fire_rev2"/>
<LocalCrouchVolumeScale name="1"/> <CrouchNoiseScale name="1"/> <NoiseScale name="1"/> <MaxVoices name="3"/> <MaxRepeatRate name="0.01"/> </SoundDataNode>
<SoundDataNode name="chainsaw_reload"> <AudioSource name="Sounds/AudioSource_Interact"/>
<Noise ID="2" range="7"
volume="11" time="4" muffled_when_crouched="0.5"/>
<AudioClip ClipName="Sounds/Weapons/Motorized/Chainsaw/chainsaw_reload"/>
<LocalCrouchVolumeScale name="0.5"/> <CrouchNoiseScale name="1"/> <NoiseScale name="1"/> <MaxVoices name="2"/> <MaxRepeatRate name="0.01"/> </SoundDataNode>