Updated on January 15, 2024 by Lewis Smyth: Weapons are the most important tool in Ellie’s arsenal in The Last of Us 2, and upgrading those weapons is of paramount importance for players looking to survive the challenges of this brutal game. Like with The Last of Us Part 1, your primary means of improving your gunplay is to find Weapon Parts and take them to one of the Workbenches found throughout the game.