A Friend Who Doesn't Listen

I have a friend whose account is close to bankruptcy. He's gotten obsessed with 'Jae-Mil' (Top Secret), likes to play his own way, and doesn't really listen to commands. One day, he asked me to accompany him to 'Jae-Mil', but his skills weren't quite there, so I told him, "Your technique and game sense still need some practice. Don't always think about how to get rich overnight in 'Jae-Mil'. You also like to go in with high combat readiness, so your assets will be depleted quickly. I don't mind how you play in 'Gi-Mil' (Secret), but in 'Jae-Mil', you need to think about how to cooperate, how to fight without blocking your teammates' sightlines, and how to conserve resources using skills and items indoors. Otherwise, you just charging forward is equivalent to leaving me to fight three people alone. Once, I went with him to 'Jae-Mil Baksh'. After we took down a team in the marketplace, we were flanked from front and back. Since he was playing 'Ulu Ulu', I told him, "You hold off anyone coming from the baths, and I'll focus on the team in front of the museum." I took down one 'Nameless Red Wolf', the last one being 'Mai Xiaowen'. When 'Mai Xiaowen' showed a bit of her head, I told him, "Careful, 'Mai Xiaowen' might flank you, get down and avoid the line of fire!" Turns out, when I told you to avoid the line of fire, I didn't mean to get into *my* line of fire! I had 'Mai Xiaowen' down to low health, and you ran over and blocked my shot. In the end, four shots killed us both. After it ended, I told him, "I told you to take cover, not run into my line of fire." He had 11 HP left, and his head and armor were completely destroyed.