The Arias Protocol is a first person total conversion mod for Half Life 2 (single-player only), which aims to combine action and stealth to allow the player to choose whether to sneak around, or just shoot everyone (or combine the two). For the former, they will have an array of gadgets, some of which can be used as weapons. For the latter, the player will have a large arsenal of weapons to choose from. The player will take on the role of Kamau Muenda, a Gambian agent of the NAC.