Here are the steps you need to take to join a battle. This example is one that anyone can play, new or veteran, a Scenario battle where both opponents receive matching troops.
Click "Show Games" under Battles on the main menu.
Click one of the available Scenarios.
Click the Enter Game button.
Click "Join Game".
Clcik " I choose the class" button, Medieval.
Find a selection of troops you like, then click "Confirm" and then "Join Game".
Open the map.
More about battling
By MOG, December, 2004, Updated November 2005 and March 2006.