The Battlefield Blog has another "Road to Battlefield 4" entry, offering a deep dive into the Field Upgrade system in the military shooter sequel, and how DICE is tweaking core gameplay to allow for more diversity in combat roles. Also, this trailer offers gamers describing their memorable gameplay experiences in Battlefield 4 accompanied by video of the gameplay that inspired their stories. The clip runs about 2:30 as it seems to be an anthology of four different TV spots ranging from 30 to 45 seconds each.