My first comment would be about Stalingrad. If it's going to stay in the rotation, it needs a major overhaul in the middle. I would remove all buildings from the middle of the map and flatten the ground. Add some obstacles, maybe a big round fountain like in Enemy at the Gates

I think that would actually make it from a awful map to a good map.

Canada

NorthWestFreshReborn
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cblanco ★
보드카 중대
VonManteuffel