The first rule of a saboteur: “Clear up the tails”—don’t leave living enemies behind you. And this commandment is for all times, whether it’s the Second World War or burnt-out, scorched Moscow after the Third World. If your path runs through deadly ruins where mercenary killers hunt you as well as bloodthirsty night creatures—and savage gangs that are worse than any mutants—and if you’re being driven like an animal, surrounded on all sides, then count only on your own strength and on a trusty “gun.” And heaven forbid you break the First Rule of a saboteur!…