EA and DICE announced on Tuesday the additional contents in the "Battlefield 1" Premium Pass and this weekend's free trial of the game. The premium contents that will follow the previously announced They Shall Not Pass expansions are In the Name of the Tsar, Turning Tides, and Apocalypse. Here are the summaries of the four premium expansion packs.

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They Shall Not Pass

Players can take the role of the ferocious WW1 French Army. They can engage in a brutal skirmish around the furnace of Verdun, and go down into the barbarous battles rage in the gas-filled corridors of Fort de Vaux. Players can experience the largest tank assault of the WW1 by the Aisne riverbanks.

In the Name of the Tsar

Players can take the role of the biggest front in WW1 - the Russian Army. They will ride in Galicia with the legendary cavalry called Hussars and experience the Brusilov offense. Players can also join in the skirmishes of the fiery Albion assault in a freezing archipelago, and partake the fight in the treacherous snow covered ravines of the Lupkow Pass.

Turning Tides

Players can participate in the amphibious clashes of WW1. They will be dispatched with the new destroyer into an intense tactical naval warfare. Players can master the coastal class airship in the fierce interplay between land, air and sea. They will join in the daredevil Zeebrugge raid and charge the beaches in the initial days of the Gallipoli offensive.

Apocalypse

Players will go over the top in the WW1's most infamous battles. They will be engaged in conquering the bitterly contested ground with brutal and unique weapons invented out of desperation and deadlock.

Players will see the nightmarish horrors of the Great War been as closer as if they descend into hell, and prepare to enter the Apocalypse. They Shall Not Pass will be out this month while In the Name of the Tsar, Turning Tides, and Apocalypse has no release dates yet. More details on premium contents are found at the "Battlefield 1" official website.

Finally, EA will be giving a free trial of Battlefield 1 for the Xbox One and PC players between March 3 and March 5. The trial version of the game can be downloaded beginning on March 3 at 5  AM PT. Xbox One players who are also members of the Xbox Live Gold can enjoy the game for free. Check out this link for complete information.