Below is a video illustrating the differences you may expect to be seeing with the sights and scopes of Battlefield 4 compared to Battlefield 3.
The gameplay at the begining and the end is clearly Battlefield 3 footage, recorded from PC. There are screenshots from two perspectives. From the hip and aiming down the sights.
The first screen shot from each perspective is from Battlefield 3 followed by it’s counterpart from Battlefield 4.
You can draw your own conclusions from what you see, but personally I like the direction in which Battlefield 4 is taking the sights. The sights seem to have a lot more detail. Also some of the weaknesses seen in some of the optics in Battlefield 3 has been addressed and tackled in Battlefield 4.
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