You need to set up an account with netbattletech.com first. It is free and you don't have to ever post there, but it's actualyl a fairly good sight for info and the like. It also has a league which uses a program called Mega Mek to handle battles. I was temped to try and use it for this game but it wouldn't be very feasable, since anyone participating in the battle would need to have the program installed and be online at the same time, with 30minutes to an hour or more to spare.