In a live stream of the Battlefield 4 Showdown event, four maps included in Battlefield 4's Second Assault add-on pack were revealed.

As top European and North American Battlefield players went head-to-head in Battlefield 4's multiplayer modes, Xbox's Larry Hyrb revealed the four fan-favorite Battlefield 3 maps that would receive an upgrade for the latest series installment. These maps enhanced with Battlefield 4's Levolution features, are Caspian Border, Operation Metro, Gulf of Oman and Operation Firestorm.

Second Assault is one of five planned expansion packs for Battlefield 4 and will be released first on Xbox One Nov. 22 as a timed exclusive. The second DLC, China Rising, will launch on Dec. 3. Players can pay $50 for a Battlefield Premium subscription, which covers all five expansions as they are released between now and summer 2014.

Battlefield 4 will be released on October 29t for PlayStation 3, Xbox 360, PC, and alongside PlayStation 4 and Xbox One on November 15th and November 22nd respectively.