Chaos Mod is a mod for Red Dead Redemption 2. It will randomly activate one of the dozens of different gameplay effects. Some of them are:

Give Random Weapon: Your character will get a random weapon. You can use this weapon to fight.

Launch Player Up: Your player will rise up and fly.

Set Random Weather: You will randomly get different weather conditions.

All of these effects are activated every 45 seconds.

This mod is very easy to use. All you need to do is to install it, and then you will see a button in the game. You can click this button to turn the effects on or off.