In my view , The small valley to the West should be taken away (or atleast the hill splitting the main valley with the small western one) so that all tanks converge in one spot, adding in some small hills and mounds for cover.
I mean, Im no vehicle crazy guy, but Id imagine 10+ tanks duking it out in one arena, moving in and out of partial cover, would be more interesting, and SW, that the odd skirmish between 1 or 2 tanks.
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Frédéric Bastiat