Battlefield 4 Community Test Environment (CTE) is used for testing upcoming releases and updates for Battlefield 4. Our goal with BF4 CTE is to provide a place where we can evolve Battlefield together with the community. The content tested does not always represent final quality of the game. BF4 CTE is available for players owning Battlefield 4 and are members of Battlefield 4 Premium. In order to use the BF4 CTE you need to register on http://cte.battlelog.com/bf4.