soldier2501

I'm stuck on Ubuntu 12.04 for various reasons (don't ask....) so I'm using version 11339, April 12, 2012. Obviously it is an outdated version. I'm guessing the lobby feature is not available in this wayyyy older version. What version implements the lobby feature?

I just discovered this game and I'd like to try to play against other players. Is there a online server where you can create or join games? Thanks.