A post on Reddit games attached this imgur folder packed to the gillie suit with screenshots of the unreleased and largely undetailed Battlefield 4, just days ahead of the game's extensive E3 2013 reveal.
Redditor Gridoverflow posted details (that he's noticed among the screens) in convenient list format. Among confirmed weapons like the CZ805, M9, SV98, and Ultimax-100, and confirmed sights like the PKA-S Holographic Sight and Kobra Red Dot Sight, Gridoverflow also points out that the map is called Siege and that Siege takes players to Shanghai.
Going by these screens, Battlefield 4 will also feature squads of up to 5 players, pistol, knife, and possibly grenade customization, as well as what appears to be working elevators. Overall it doesn't seem like the fourth game in DICE's military series will change much, instead focusing on delivering the same intense and addictive experience as was present in Battlefield 3.
We'll have more on Battlefield 4 in the coming days, including hands-on (we hope) impressions and details live from the Electronic Arts press conference tomorrow.