You can watch the Battlefield 2 Battle.
Net trailer on your mobile device by downloading Battlefield 3 for iOS or Android.
To download Battlefield 3, first launch the game and select “Install Game” or “Install from App Store”.
Once the game is downloaded, click “Launch Game” to launch the trailer and select the Battlefield 1 Battle.NET Trailer from the list of available trailers.
The Battlefield 2 trailer is available on all major mobile platforms.
The Battlefield 3 trailer is only available to Xbox One owners in the US.