Call of Duty: Ghosts teaser video revealed

The official Call of Duty Twitter account today posted a teaser video for Call of Duty: Ghosts.

The video, a short clip released through Vine, shows what appears to be several shots from an in-development version of the upcoming first-person shooter.

It ends by reminding Call of Duty fans that Ghosts will be on display during Microsoft's next-generation reveal event on May 21.

GameSpot will have full coverage of the presentation, which begins at 10 a.m. PDT. Microsoft is widely believed to announce its next-generation Xbox at the event and give first details about the long-rumored platform.