Ash gone wild

The main subject is a player in a first-person shooter game, viewed from behind a weapon with a red dot sight, who is looking down a narrow corridor with brick walls and a metal roll-up door. Across the loop, the player remains stationary, aiming down the corridor, while the game's user interface displays a "1 VS 1" match in "SUPPORT MODE" with a countdown timer at 0:00, and a defeated opponent lies on the ground in the distance.