A pack of weapon sounds from the game Battlefield 3.
I must say thanks to the author, since Frostbite 2.0 uses dynamic sound interaction of the environment, and GTA IV has a simple system of removable sounds.
Installation:
Use SparkIV or Open IV to access the resident.rpf file, which is located in grand theft auto iv/pc/audio/sfx/resident.rpf
And replace Weapons.ivaud and explosions.ivaud.
Replace Weaponsinfo.xml in grand theft auto iv/commom/data/
Replace anims.img in grand theft auto iv/pc/anim
Replace Weapons.img in grand theft auto iv/pc/models/cdimages