If your game server is behind your router. You will need to forward the correct ports to your box, that's running the MOH server.
If you just want to give your clients an IP ( your team ) then just forward only the 12203 port.
If you want everyone to see your server so you get new players to join. You will need to forward all the game spy ports.
Check out dogmeats port guide
http://tfo.servebeer.com/file-guides-portlist.html
If you wish send me your server.cfg file to
jlandi@cox.net. I will take a look and see if all is well. Just remember to remove your rcon password