Episode 1: What the Hell
Map 5: Unholy Citadel
Before you lies the unholy citadel, a demonic construct of pain and damnation where prisoners of war have their souls taken by demons who come to pray to Hell in the citadel's cathedral. UAC intelligence has learned that an Icon of Sin has made the citadel its nest.
Hint: Activate the secret level (Map 31) by 'playing chess'. Once inside the citadel, look for a brown cross lit in green to access the chess board!
Map 31: Wolfenstein Returns
(Access this level via Map 5)
Hitler has been resurrected again and commands a brigade of Nazis intent on delivering Earth to the hellish forces that have been ravaging the planet. You must infiltrate Castle Wolfenstein, fight your way through the Nazi forces, and destroy Hitler once and for all.
Hint: Activate the super secret level (Map 32) by shooting a small likeness of Hitler lit in green!
Episode 2: Urban Incursion
Map 15: Industrial Zone Redux
You've made your way into the industrial zone of the city and realize you've been here before... the first time hell invaded earth 30 years ago. Demonic towers, built on top of the remnants of the original industrial zone, now dominate the area.
Hint: Activate the secret level (Map 33) by locating and defeating the twin spider masterminds!
Map 33: Bowling
(Access this level via Map 15)
You need to take a crap, and the closest restroom is in the nearby bowling alley. After relieving yourself, you hear the growls of demons entering the building, and they're not here to play.
Hint: Activate the super secret level (Map 34) by 'bowling' all the lanes!
Map 20: Corporation of Sin
To save Earth, you must complete your mission and destroy the portal connected to Hell. An Icon of Sin sits on the other side of the portal, spawning unholy abominations into our realm. Battle your way through the corporate headquarters to locate the portal and stop the demonic invasion once and for all.