I'll Be a Policeman in the Last Days

Introduction: Traveling through the world of the walking dead, I turned into a zombie but was bound to a super police system. Are zombies the ones I protect? Are the survivors who are killed indiscriminately the enemy? When the spirituality of zombies is awakened and they emerge as a new race, where should the survivors of the old era go? It prefers strategic management, a small amount of plot, and does not follow the protagonist.