 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 