The video shows a first-person view of a player holding a gun and moving through a series of rooms and corridors in a game. The player moves from room to room, looking around and checking corners for enemies. The rooms are dimly lit, with some natural light coming in from windows. The player's gun is prominently displayed in the lower part of the screen, and the player's health and ammo count are visible on the screen. The game's graphics are realistic, with detailed textures and shadows.