You can make your own mobile FPS shooting game using this package. It has good character controller system, has virtual joystic UI, fire, jump, crouch, sprint buttons etc. It has basic mechanism of weapon pickup, dropping weapon, reloading ammo, ammo pickup, and so on. There are zombie enemies you can shoot and kill, including health bar UI, smart enemy follow player ability using NavMesh component, blablabla.
Important note: Don’t forget to setup your own static navmesh objects and define which one is walkable and not walkable then bake!