Extinction Mode and Easter Eggs
Unlocking Extinction mode, exploding alien dolls and a Modern Warfare reference.
1.Unlocking Extinction Mode
Two ways:
- Play Multiplayer Career mode and reach level 5, or
- Play Single-Player Campaign on 'Regular' or higher difficulty and complete the 'Ghost Stories', 'Brave New World', 'No Man's Land' and 'Struck Down' missions.
2.Extinction: Exploding Alien Dolls
Start Chapter 1, "Point Of Contact" and collect a sniper rifle. Find the "Gil's Lodge Motel" neon sign. With the sniper, shoot the letters "L", "O" and "L" (in order) in the word "Lodge". The message "LOL" appears center-screen. For a short time, any alien shot explodes into golden alien stuffed dolls.
3.Modern Warfare Reference
In the mission "Atlas Falls" you breach a recreational room, where you can see an arcade machine called "Call of Duty: Modern Warfare".