Source code access , Free
How does it work: [QBCore - FiveM] Gang attack, that ability from watch dogs2 - YouTube
how to setup is here: GitHub - kranercc/qb-gang-attack-setup: This is a guide for people to install my Gang-Attack Script.
Call an attack on an NPC or player, a team will go hunt him down, like in watch dogs 2.
tebex free: https://krane.tebex.io/category/free
keep in mind that by downloading this, you get 50% off any purchase so might be a good way to abuse that feature