I have to say that i don't know the original one so i don't know what you modified.
There is some bugs we can correct.
There are other things which should be modified/enhanced.
For exemple the tod, i found it too bright and the moving shadow is not really nice, maybe we should use a fixed time.
The streets are too empty to my opinion. We should have more vehicles (casus vehicles for exemple), some barriers, checkpoints, road blocks, accidents, some decals and little objects on the ground.
The mountain around the map should be a little reworked to be more realistic.
About the gameplay, i think we should not have the "doors" inside the buildings because these buildings have only one access and it will be too easy for defenders to camp and block the way.
I don't know if you want to rework these points or if you want to just adapt the gameplay of the original map. But if you want, i can go on a server with you to check all these points and i could help you on some things.