Although the use of four-engined strategic bombers was mostly limited to use of the huge Pe-8 bomber, the Soviets used many other aircraft for both strategic and tactical bombing. As the bombers of the Red Air Force were mainly tasked with supporting the Red Army, most of the bombers were used for tactical bombing, attacking tanks, troop convoys, trains, and airfields.
Jason Nicholas Moore Soviet Bombers of the Second World War (Hardback)
Although the use of four-engined strategic bombers was mostly limited to use of the huge Pe-8 bomber, the Soviets used many other aircraft for both strategic and tactical bombing. As the bombers of the Red Air Force were mainly tasked with supporting the Red Army, most of the bombers were used for tactical bombing, attacking tanks, troop convoys, trains, and airfields.