The content you are looking for relates to (Real War Game: Theatre of War), a popular realism mod for the tactical strategy series Sudden Strike . Specifically, RWG ToW 0.4 is a version that features the "Berlin Operation" (Берлинская Операция). Key Details on RWG ToW 0.4: Berlin Operation
: You can check ModDB for archives of older versions and community-made missions, though the most recent "ToW" specific versions are often hosted on Discord or private forums. The content you are looking for relates to
: Realistic weapon ranges, armor penetration, and unit statistics. : Realistic weapon ranges, armor penetration, and unit
: Addition of late-war Soviet and German equipment, including IS-2 tanks, Tiger IIs, and specialized infantry squads. Where to Download and Find Content : Realistic weapon ranges
: Note that many versions of RWG are natively in Russian, though English language patches are sometimes available via community Discord servers.