EA and DICE have just released a sneak peek at a brand new single player video for Battlefield 3. The small teaser is about 50 seconds long and puts you in the shoes of U.S. Marine Sgt. Blackburn as he enters the city of Tehran in Operation Guillotine, a joint operation to capture key members of the PLR leadership. The small amount of footage shown is enough to make anyone stand up and take notice. Some of the stuff shown is hard to believe. The game looks amazing. Check it out below and prepare yourself for the full length trailer which is due out on September 16.