This video is a first-person shooter game where the player is moving through a dark and eerie environment. The player is armed with a gun and is seen shooting at enemies. The environment is made up of dark rooms, staircases, and hallways with a lot of debris and rubble. The player moves cautiously through the environment, taking cover behind walls and objects. The lighting is dim, with occasional flashes of light revealing the player's surroundings. The player's gun is visible in the lower right corner of the screen. The video is fast-paced and action-packed, with the player moving quickly and shooting at enemies.