In the lead up to the next installment of Battlefield, DICE are giving away the DLC for the last titles, for free over the next few weeks/months.
Whether you currently play or not, grab it now so you have it free for life (of the game and servers).
The BF4 Dragons Teeth DLC is well worth a look and the game is still very active. The French DLC for BF1 was definitely one of the best.
Edited by Anchorman