This seems to cause the sounds for the Synergy exclusive weapons to break. I was able to fix them (except the MP5K reload sounds) by adding this line to the included game_sounds_manifest file:
" "precache_file" "scripts/game_sounds_synergy.txt" "

I do not have these issues with the standalone versions of the EZ2 weapons.

it happen too the regular version too

now i get it is a from the original version

i used ez2 sound and some others bug detected such as missing texture not just this addon but for regular gravy gun

also the sound is kinda fucked up

:(

@JR NIMROTT no unfortunately not. this pack using regular hev suit arm. this pack actually just fix for ez2 thirdperson weapon for synergy and for intended for personal use only and i decided to share it

does it have 3650 arms?