Hey!
Here are some simple steps you need to follow to create a game (if there are no servers available):
1. Create a server by clicking host a game
2. Choose a map
3. When a map loads, type in: your name and a server name you want people to see
4. Click join or host server
This will create a MP game, that others will see under Server Browser in the main menu
IF under the Server Browser there is a game available that you would like to join, just select it and it will load.
Hope this Helps and would be great to have you feedback on this
Thanks
ANPAUS