This video is a recording of a video game. The game appears to be a first-person shooter, with the player moving through a series of rooms and corridors. The player is armed with a gun, and there are other characters in the game who are also armed. The player moves through the environment, shooting at enemies and collecting items. The graphics are realistic, with detailed textures and lighting effects. The game appears to be fast-paced and action-packed, with the player constantly on the move and engaging in combat.