Don't get me wrong but I have read dozens of posts like these and they all share a common problem:
Its allready a BIG effort to create a one-level demo thats good enough to put it up here for download, but starting the first game with an attempt to create a very distinctive setting (to 99% the re-creation of an existing game developed by pros) makes it nearly impossible.
You don't like the tropical trees in MP 29? I bought it, I didn't like everything but its highly usable - and there is simply NO alternative.
Of all the characters in the MPs and the store nothing fits your idea of a game? THen maybe its the wrong idea - sorry.
Belive me - NOBODY will care what nationality your soldiers are. If your game will be enjoyable, German Wehrmacht, Terrorists or Mercenaries will be good enough.
I know you did not ask for advice but for the models. But before you pay a lot of money for some custom models, rather try to find half a dozen characters at the TGC store (or a charcter MP) that you like and build your game around it.
In case you find my grammar and spelling weird ---> native German speaker ^^
