I am an Alpha 1, and it seems that you gave access to them to test the new maps. I am not sure how to find them. If I am not yet allowed access, then could you clarify who does have access. Thanks in advance!
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There should be an early acces forum. sbs is posting some nda stuff over there. Like the maps for the alpha 1 backers.
Assuming you do in fact have access. Everything is explained in the sticky posts up the top.