Actuelly i stopped playing FFOW 4 months ago. And i only play COD5 and COD4 with my own hacks. And COD4 got about 14000 servers if you refresh the game. COD5 about 3000 i think. FFOW got one server add Solar Farm where people play on.
www.gametracker.com shows more servers for FFOW. But the Game is cheap/crap and with lots of bugs.