1- by using open iv go to
Grand Theft Auto V\update\update.rpf\common\data
and edit dlclist.xml then add this line:

<Item>dlcpacks:\gazu\</Item>

2-put gazu folder in Grand Theft Auto V\update\x64\dlcpacks


3- done you can spwan it by using simple train with name gazu



To make zu23 muzzle work you should spawn any vehicle with mg and fire with it,then spwan my mod. 