Yu Jing Blue Wolf Mongol Cavalry TAG PackArmies: Yu Jing White Banner Army Essentials The Blue Wolf Regiment is a nomadic unit, always changing its location, always on the move, so as not to be an easy target. And this is only possible thanks to their lightweight TAGs, which allow for greater mobility and require less equipment and support personnel than a conventional mechanized regiment. TAGs are coming to Infinity Essentials! Huge, fast, lethal and tough war machines at your disposal.