This video shows a first-person shooter game where the player is holding a gun and shooting at enemies. The player moves through a building, shooting at enemies that appear in front of them. The game's graphics are realistic, with detailed textures and lighting. The player's gun is visible in the lower right corner of the screen, and the enemies are shown being hit and falling to the ground. The game's HUD (heads-up display) is visible, showing the player's health, ammo, and other game-related information.