Our teammate came to play the game with headphones

Today when we landed on the field, when we find weapons, at the same time one of our friends knocked out the enemies.
Location was new to me
And I could not understand that our friend is knocked out but wow where is this room
Because we did not know much about this location or this house.
I kept searching for him here and there when he himself came to me where I was.
I revived her. She was a girl on our team, she was looking very fond of headphones.