I meant battles because I believe it would be very difficult for them to make a full campaign multiplayer, let alone MP against the AI. Even though that would be GREAT

Unless I am using a different version of MTW the MP battles you have to do are through the CA servers and you cant directly connect to a buddies computer and play that way. This is what I mean by a tcp/ip game. TCP/IP is an option given in most MP games such as Mechwarrior. If you know a servers IP or a buddies IP you enter it and connect skipping the third party server.

Currently you have to go through their servers I believe, unless that has changed. I have not played online MTW since last December since I have been working on my cutom historical battle.