Tier 1-2: Mittengard, Mines
Tier 3: Ruinberg, Winter Himmesdorf, Mines
Tier 4: Winter Himmesdorf, Himmelsdorf, Mines, Ruinberg, Winterberg, Steppes, Widepark
Tier 5: Winter Himmesdorf, Himmelsdorf, Mines, Ruinberg, Winterberg, Steppes, Widepark, Tundra, Ensk, Malinovka, Karelia, Sand River
Tier 6: Winter Himmesdorf, Himmelsdorf, Mines, Ruinberg, Winterberg, Steppes, Widepark, Tundra, Ensk, Malinovka, Karelia, Sand River, Airfield, Westfield, Live Oaks, Lakesville, Abbey, Fiery Salient, Prokhorovka, Cliff, Highway
Tier 7: Winter Himmesdorf, Himmelsdorf, Mines, Ruinberg, Winterberg, Steppes, Widepark, Tundra, Ensk, Malinovka, Karelia, Sand River, Airfield, Westfield, Live Oaks, Lakesville, Abbey, Fiery Salient, Prokhorovka, Cliff, Highway, Windstorm, Arctic, Siegfried Line, Murovanka, Mountain Pass, Redshire, El Halluf,
Tier 8-10: All maps
BTW, Province got removed. Next on the hitlist are Pearl River and Hidden Village.
