[rudedog]

You would need a router, Microsofts ICS ( Internet computer sharing ) can not forward the correct ports like a router.

When sharing a connection a router is always the best bet. You can configure it as a firewall as well.

what you need is a
hardware router, I would suggest a linksys but someone has mentioned that there processor is not the greatest. One or two computers should be fine. just don't try and host a 16 player game from behind it.

the latest firmware for your router.

connect one computer at a time to the game server of your choice. This way you can establish what outgoing port the router will use for each computer.

This is not fool proof. I would however suggest you ask this question on the router's message board to see what others have experienced with MOH.

Good Luck