They Shall Not Pass brought the French Army to Battlefield 1 and In the Name of the Tsar delivered the Russian Army. Turning Tides provides Battlefield 1 owners with a new playable faction.
The British Royal Marines are included inside the Turning Tides DLC and players wear "the characteristic blue uniform of the British Empire’s elite naval troops and charge into battle with the new Royal Marines."
The new faction is included with the DLC's North Sea patch.
Turning Tides also comes with a brand new Elite Class called the Infiltrator Elite Class. The new Elite class allows you to utilize a permanent sprint boost.
You'll also be able to call in artillery strikes and deploy a mobile spawn point for friendly troops.