If you want to invest the time and can get permission, go for it.
I'd like to help too.
Pudong and Puxi in Shanghai have been translated to Pu East and Pu West. The etymology of the names is very complex so read the following slowly and carefully...
Dong = east
Xi = west
Pudong is east of the Huangpu river and Puxi is west of the Huangpu river.
Got it?
To aid further, I've found a map that might illustrate the point a little more clearly. Let me know if it's too detailed though.
Map can be found here:
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If you start changing the names on the warlight map, these would be an easy fix.
And now, my help is over.