From DoW website:

The Sword of Stalingrad expansion features 2 large-scale ready-to-play Overlord Scenarios; 2 standard scenarios; new Summary cards for the previously published Battle Maps and Mediterranean Theater expansion; and, for the first time, additional cards for in-game play - the new Combat Deck specifically designed for urban warfare.

Sword of Stalingrad

Holed up in a Grain Elevator overlooking a strategically vital square, you just watched the South Railway Station change hands 14 times in the past 6 hours. Will you survive the next onslaught?

Rats in a Factory

The Northern Factories: A ghastly place for a battle… heavy metal sheets creaking in the wind. Smart animals flee, leaving only rats to thrive in this burning hell!

The Battle Map series is designed to encourage team play and accommodates up to 8 players; each map comes ready-to-play with all terrain, obstacles and unit positions pre-printed, making set-up a snap.

Battle Map Volume 3 includes 2 standard scenarios that are playable on a regular Memoir ‘44 board - Mamayev Kurgan and Pavlov, Hero of the Soviet Union.