This is a tips, strategy and walkthrough guide to Personal Computer (PC), IBM format video game 'Doom II'. There is a gray-scale screen shot for each of the items, weapons, and enemies. There is a floor plan for each of the missions, along with details at what to do at various points in the mission. There are pink and red diagrams of strategy, tactics, fireball/comet illustration on the top of most pages, and red section headers. After the main walkthrough there is tips on 'Network' multiplayer arenas, an interview the author had with John Romero, and a listing of cheat codes programmed into the game.