Battlefield 4 on xbox 360 needs 2GB instalation Hard disk

According to the Electronic Arts official site, Battlefield 4 game on Xbox 360 will be packed in a 2 piece disc and the player must perform the installation of 2GB hard disk to the Xbox 360. ?

The first disc will contain the multiplayer, while the second disc will contain the single player campaign. In order to get better performance, players can perform the optional installation of 6.6GB from 5.8GB of disc one and disc two.

"We strongly recommend players to perform this installation in order to gain experience of playing Battlefield 4," said Electronic Arts.

Battlefield 4 will be launched on the Xbox 360, PlayStation 3 and PC on October 29, 2013.