The video shows a first-person shooter game where the player is holding a gun and shooting at enemies. The game environment is dark and gritty, with a lot of smoke and debris. The player moves through different rooms and corridors, shooting at enemies that appear in their path. The gun has a scope attached to it, which the player uses to aim at distant enemies. The enemies are wearing gas masks and uniforms, and they are shooting back at the player. The video is fast-paced and action-packed, with the player moving quickly and shooting continuously.