How to download and install the game trainer. To download a game trainer, the player has to follow a series of steps. A player must understand the in-game requirements. You should ensure that your PC runs on software compatible with the game trainer. Most of our game trainers run on Microsoft Windows 7, 8, and Instead of surfing the net. May 03, · Description. GTAIV NATIVE TRAINER V () Menu system, Options (all options this trainer has to offer), Car Options (all car options), Bodyguard/Ped Spawning Car spawning (all models), Mission Help, Model Spawning (all models), Object Spawning, Teleporting, Teleporting save, Time, Weapons and Weather.