Vine:
http://vine.co/v/bpeapQiWB3l
Starting off with heavy machinery, a bit wet. Later on, it's a tank.
"4","Prepare 4 battle": We already know it's BF4, but in the back of the picture there are unfocused rain drops, which empowers the idea of moist weather in the game.
You can actually see machinery underwater, naval warfare?


We can see an American soldier followed by an LAV-25 and an M1 tank. The enviorment is urban and it's raining.
Right next to the 4, there's a picture of a J-20, a stealth jet made by China.
The soldier's holding an M40A3 (it's an A3 because of the adjustable stock), which is made by Remington and US Arms and functions as the official weapon for the USMC snipers.


Behind the letter D, there's an Asian soldier.
Right next to the American soldier we can see the city Shanghai.
Multiple armies coming back? We'll see on March 27th.