What an amazing mod! I've been playing it all night and I haven't had this much fun in a game in a good while. The way the teams are setup bring an amazing deal of balance, each team is at each others necks for the duration of the map making every second very intense and extremely fun. As of now (beta 2.0), each team has 2 classes which are very well balanced.
Pirates Vikings and Knights II
As the game progresses, they will release more classes, more play modes, and more maps amongst other things. With each team having 6 classes, I would have to say this is going to be one hell of a fun clan match game. Check the game out!