A trailer for Battlefield 4 has leaked, and it appears to be focused on the game's single player campaign.
The 30 second trailer demonstrates the previously hinted addition of water vehicles, as well as the usual tanks and road vehicles.
It also advertises a 17 minute gameplay video on the official Battlefield 4 website, which is yet to go live.
Check out the leaked trailer below:
Three new screenshots from Battlefield 4 leaked earlier, ahead of EA's official unveiling of the game in San Francisco today.