I read Anthony Beever's books too except for Battle of the Bulge which is next. I like his books but I don't trust him cause he is very anti-German, but the Chuikov book seems much more accurate even though of course he is pro-Russian and focuses mostly on some dreadful setbacks the Germans suffered. I like unbiased writers like David Glantz and I think Lloyd Clark is unbiased too. I like the book about Operation Mars by David Glantz called Zhukov's Greatest Defeat: The Red Army's Epic Disaster and it happened at the same time as Stalingrad in the bulge created by the push towards Moscow but almost nobody knows about it.
To provide some historical content for the introductions to each scenario of Barrikady I have based, among other sources, on the official documents available from the German army and the Soviet army, many of them compiled by Colonel David M. Glantz. In other official documents, I consulted the Army Group B's Intelligence Reports.
Army Group B's Intelligence Reports:
Precisely, this German intelligence service, already warned the high command of potential offensives of the Soviet army, including Operation Mars, which finally took place on November 25, 1942. Naturally, all these threats were not considered dangerous, because they were considered as maneuvers of distraction to avoid the imminent fall of Stalingrad and the sending of reinforcements to the sector seriously threatened by the offensive of November 19, 1942 (Operation Uranus), which was no distraction maneuver, as we all know.