PLO - contraversial? 
- one mans terrorist is another mans freedom fighter after all! 
The only controversy* to my mind would be calling your modern Islamic fundamentalist forces "Black October." Obviously inspired by Black September, but Black September were most certainly not Islamic fundamentalists. That's a much more modern phenomenon. They were Palestinian nationalists whose outlook was left-wing and very secular (their parent organisation Fatah were materially supported by the USSR and China, and had links with such organisations as the Baader-Meinhof Group and others) .
But hey, it's only a game of toy soldiers, so it don't really matter, and it is a cool name (which is important).
*And not really a controversy at all, more of a technicality.
