Activision is bringing Treyarch's Zombies storyline to a Modern Warfare game for the first time ever with Call of Duty: Modern Warfare 3, and now we have our first teasers for the undead. These new images give a good indication of where the storyline could be going and what the map could look like. Here's what we've learned so far.

Currently, there's a Call of Duty promotional campaign happening with WhatsApp, which allows you to text for clues about the upcoming Zombies storyline. The first image shared through the promotion shows a phone on a desk with a map and two notebooks. The map image has an area circled in red, which could be teasing the location of this year's Zombies setting. However, the most notable images are the notebooks on the desk.