You might remember that late last month, EA was giving away the "They Shall Not Pass" expansion for Battlefield 1 for free on Xbox, and now a second expansion is being given away in the form of Battlefield 4's "Second Assault".

Like last time, you've got a week to claim the expansion from the Microsoft Store before it reverts back to full price, and it doesn't look like you need to be a member of Xbox Game Pass Ultimate or even Xbox Live Gold to obtain it.

Second Assault features "four of Battlefield’s most popular maps two years after the events of Battlefield 3 and with added dynamic elements that change your game in real-time", along with the likes of more weapons and vehicles.

"Battlefield 4 Second Assault is one of five expansion packs included in Battlefield 4 Premium. Play in four of Battlefield’s most popular maps two years after the events of Battlefield 3 and with added dynamic elements that change your game in real-time.

Create your own corridors in the tunnels of Operation Metro, or cloak yourself behind the smoke and flames of wildfires on the Caspian Border. Further enriched by more weapons, vehicles, and the return of a fan favorite multiplayer mode, the maps you love are more explosive and exciting than they’ve ever been before."

Have you claimed this free expansion yet for Battlefield 4? Let us know down in the comments.