Hoo boy, despite the cheesiness, the game manages to get a lot in there.
- The zombies' designs have glowing orange eyes, gray skin, and veins pulsing like Tron Lines. They're, you know, from hell, so there you go.
- The Lord of Hell itself is met at the end of the Extinction Ops campaign. He has a massive burning hole in his chest, a mighty flaming sword, and a samurai-style helmet leaving none of his face visible except his orange eyes. Those eyes...
- All of London. It's flooded with murky water, covered in zombies, although there's a bit of good news! Deep in there, there might be a cure! Except the "cure" happens to be a massive amount of giant bugs. Which then keep the Broodmother happy. Oh, and the Broodmother's fight has the one advantage of dodging easily. The Boss Rush version? Nope.
