The patch itself is confirmed to be 1.92 GB, it contains "improvements to the multiplayer portions of the game" as stated by its listing information. The listing also goes on to add the following "We strongly advise you download it.".

To accompany this patch is the final DLC for Battlefield 3, Endgame. It features four new maps and some brand new vehicles. It gives players the opportunity to play two game modes, Air Superiority and Capture the Flag.