I dont have a hard drive how can i play BF4

Even your USB is 100MB/s

That's not working on BF4.

The first time you start your game, regardless of which disc you use, you will be asked to perform a required installation of 2 GB worth of game content to your hard drive.
Note, the above-required and below-additional installations can only be installed on Xbox 360 hard disk drives, and cannot be installed to USB drives, or other alternative storage devices. Battlefield 4 cannot be installed and played on a 4GB internal flash drive.
You will have the option to accept the 2GB install or quit. Quitting will return you to the Xbox dashboard, and you will not be able to play Battlefield 4.

https://help.ea.com/article/battlefield-4-xbox-360-install-guide?utm_campaign=bf-display-us-socom-tw-social-us-socom-tw-hddreqs-151013&utm_source=twitter&utm_medium=display&sourceid=bf-display-us-socom-tw-social-us-socom-tw-hddreqs-151013

I saw that after I brought one and found this problem...........:mansad: