The Odessa and Leningrad: Siege and Liberation module focuses on important battles from the beginning and end of the war, namely the sieges of Odessa and Leningrad and their subsequent liberation.

Unlike the other modules, Siege and Liberation contains two large maps at once: Odessa and Leningrad.

Another highlight is the Pilot's Career mode that will have the longest timeframe of all WWII modules. On release, these timeframes are included already:

• Defense of Odessa (August 11th - October 16th, 1941)
• Leningrad Blockade (September 26th, 1941 - January 6th, 1942)
• Odessa 1944 (June 9th - August 19th, 1944)

These timeframes will be gradually expanded in the following months of 2026:

• Early war: the 1941 Odessa campaign will start on June 22nd and the Leningrad one will be expanded to September 6th, 1941 - April 30th, 1942.
• Late war: the Odessa campaign will be expanded to April 5th - August 24th, 1944 and the Leningrad one will be added (January 14th - September 4th, 1944).
• Additional towns, villages, airfields, roads, bridges and other objects will be added to meet the expanded timeframe requirements.