 Complete the following phrase:  The games story focuses on the Eastern Front campaign as narrated through flashbacks by Lev Abramovich Isakovich, a Soviet Army lieutet locked up at a gulag in Siberia in 1952. Colonel Churkin  his old commanding officer  shows him a book and interrogates him about his experiences during the war, including the Battle of Stalingrad, the Battle of Moscow, combat in the outskirts of Leningrad, fighting in Poland, up to the 