Delta: Overtime Detention, I Built an Arsenal

The young anchor was electrocuted and woke up in a strange battlefield with gunfire and corpses everywhere. He picked up an old gun and got into the corner of the ruins - a voice suddenly sounded in his head: "The Delta system has been bound." He discovered that he could enter a world called the "Beacon Zone". There were weapons, armor, and medicines that he had never seen before. Every time he enters, all participants will evacuate after half an hour, but he can stay. The entire map was deserted, and all supplies were available for him to loot. He brought the collected weapons back to reality, transformed from one person into a team, and created a world from a dilapidated house. And the gunfire in that world never stops