Yo, took a look in forge. The overall design is excellent, but there are certain aspects dragging it down, IMO.

• bases need more structure (the silo platforms as well although to a lesser degree).
• I would suggest removing the connections between base and top mid. Allowing players such a direct option generally leads to easy objective runs (should the team have the latter controlled), and a far too contestable top mid.
• needs more varied height changes. There are only two real levels of height as it currently stands.
• I would suggest blocking that immediate upper level connection between base and the silo platform (force players to the bottom floor when they attempt to gain that position - kind of like on Sanctuary).
• I would suggest removing the giant rocks (turning them into a jump up would be ideal actually) and instead, add direct cover to the curvy bridge.

shoot me an invite next time we're both on, so I can give you a better idea of what I mean. gt: basketskate3

 

Downloaded the map and walked through it and the map looks well forged and design-wise the map looked solid, for the most part. I do have to say that I agree with many of the changes that basket recommended and commend you for implementing most of his feedback. I really would recommend thinking about adding more height variation as he mentioned. I am not sure what you mean by an arena style map but height variation really is king when it comes to producing interesting and dynamic sight-lines. As it is now with only two real levels to the map confrontations between enemies can quickly come to seem repetitive and that is something you want to avoid. I hope none of this came off as condescending or critical I really just want to help your map grow in a good direction and reach the potential that it can. Best of luck with your map and look forward to playing it sometimes in the future.