Something

function Boom2() {
  setstring server.data,#L;
  setstring server.data2,#s(this.owner);
  setstring server.data3,#s(this.guild);
  mx=x; my=y;
  with (getnpc(db-flags)) {
    this.mx = mx;
    this.my = my;
    warpto #s(server.data),this.mx,this.my;
    setstring server.data,;
    for (this.explo=0;this.explo<4;this.explo+=1) {
      this.x=this.mx+random(-6,6);
      this.y=this.my+random(-6,6);
      putnpc2 this.x,this.y,{
        join explosion;
      }
      radius=5;
      damage=10;
      with(npcs[npcscount-1]) {
        setstring this.owner,#s(server.data2);
        setstring this.guild,#s(server.data3);
        this.radius=radius;
        this.damage=damage;
      }
      putnpc2 this.x,this.y,{
        join fire-petrolbomb2;
      }
      with(npcs[npcscount-1]) {
        setstring this.owner,#s(server.data2);
        setstring this.guild,#s(server.data3);
      }
    }
  }
  setstring server.data2,;
  setstring server.data3,;
}