The trainer typically offers roughly designed to enhance or simplify gameplay:

The 1.10 update for Far Cry 4 addressed various stability issues and added support for DLC, and Fling’s trainer was updated to remain compatible with these changes. Popular features include:

Before activating the trainer, manually save your game by fast traveling to a Safe House. This creates a restore point. Then, press NumPad 1 (God Mode), NumPad 2 (Infinite Ammo), and watch the Royal Army of Kyrat tremble.

Unlimited Ammo, No Reload, and Infinite Grenades/Explosives. Progression & Economy: