Square Enix and GameStop have partnered to start a new campaign called the Rico Weapon Challenge. This contest could see your weapon design added to the final product.
The contest runs from now until October 31, you can enter your designs at www.GameStop.com/JC4. All submissions will be reviewed and the The lucky winner will receive a custom skinned JUST CAUSE 4 Xbox One X console as well as a Gold Edition copy of the game.
The winning design will be added to the game at a later date as free DLC.