Adds Finnish troops to Panzer Grenadier. 20 scenarios and 88 mounted and die-cut counters with Sissi ski commandos, Finnish-made BT-42 assault guns, Soviet SMK heavy tanks and Aerosans (An aerosan is a type of propeller-powered snowmobile, running on skis, used for communications, mail deliveries, medical aid, emergency recovery and border patrolling in northern Russia, as well as for recreation.) Aerosans were used by the Soviet Red Army during the Winter War and the Second World War. Not playable by itself, but an expansion for Panzer Grenadier: The Eastern Front and Heroes of the Soviet Union.Expands: Panzer Grenadier - BoardGameGeek