Put in "assets/mod_overrides". If there's no "mod_overrides" folder just make one
Currently replaces: Thompson M1A1 BAR Heavy Rifle M1 Garand M1 Carbine M12 Shotgun Double-Barrel Shotgun MP 38 Sterling Machine Carbine Colt M1911 Degtyaryov DP-28 Springfield M1903 Rifle StG 44 Mosin Nagant Karabiner 98k M24 Stielhandgranate Bren Flamethrower Lee Enfield C96 Mauser MG 42 Sawn-off Shotgun
Preview the sounds here:
Not my video, hope that doesnt matter